Alfa Romeo 6C1750 "Gran Sport" (Fourth Series) … A highlight of what I think I know at this time

This listing results from a personal study that has no affiliation with nor its associated companies Anyone who pays attention to the evolution of this listing will know that there are no conclusions reported here. It is a collection of data collected from a variety of sources. Many updates have been made even in recent times.

This listing is compiled and presented by John de Boer with the hope that some interested folks will share something of their own interest and report something about what they may know as a result! Any input welcomed at: [email protected]

This listing is a work in progress. I expect to be able to make it more precise from information already in my files. I'll work on it and update it as required! I hope to have your help. In the meantime, I am hoping to attract some discussion with additional owners. Please let me know what is not yet decscribed correctly or fully. I will share a worksheet that I use when looking at any of these . It will help you gather data and show what I'd like to see photographs of … if you are willing to share.

In the listing below:

Chassis/Telaio numbers in black ink = a that I believe exists today. I've not seen them all and have not verified them all personally. This part of the listing will evolve quickly, I hope! Chassis numbers in red ink are those for which I have some question that would like to be answered before saying it exists with some assurance.

Quite a number of Gran Sport cars in the Fourth Series were completed as 1500cc category racing sports cars. Where this detail is certain, the has some "blue-ink" in the description. There may be a number of additional cars that will be described as 1500cc cars in the future, particularly among the cars about which nothing is yet known.

There are a number of Alfa Romeo 6C Gran Sport cars in the fourth and fifth series that have clearly had some chassis swapping or other dramas early in the car's life. In fact, there are enough of these occurrences that I am no longer truly surprised when another such mystery is revealed. Describing each case will be its own individual task. Note: I consider that these instances, when described completely, only add to the mystique and "magic" that can be felt for these cars in general. There is ample evidence that chassis were swapped (and replaced as a spare parts) with some regularity at Alfa Romeo - Milano and also at Alfa Romeo British Sales in the UK.

Engine numbers specifically listed without parenthesis are believed to be accompanying the original car. Engine numbers not listed … I simply do not know enough to report on this detail. I expect there are some blanks to fill in, one way or another. Engine numbers ((in parenthesis)) are believed to have been separated from their original chassis … but I know that this characteristic can change over time. If you know that an engine is or is not with a specific car these days, please share what you know. I may ask for some sort of added documentation so please be prepared to share some detail.

Coach # describes: T# = Touring body number, Z# = body number Cd'O date or … = describing the earliest known date that the car existed as an acknowledged legal entity. Cd'O = Certificato d'Origine, a sort of "birth certificate", allowing it to be registered for the road in Italy.

Chassis/Telaio Engine/Motore Coach # Cd'O date or … Comments 6C8513001 6C8513001 Sport spider "S.A. Carrozzeria Sport - Milano" … existing today with a replacement chassis most likely from 1932. 6C8513002 26.3.30 Cd'O History described 1930 - 1935. Probable DNF on MM 1930. 6C8513003 (nothing is yet known to me) 6C8513004 6C8513004 History described from 1930 to 1938 and research is continuing. Probable MM 1930 participant with "top ten" finish. 6C8513005 ((6C8513005)) Described and known since 1940's. Fitted with engine 6C8613217. 6C8513006 26.3.30 Cd'O History described 1930 - 1935. MM 1931 participant. Registered 1935 under frame number rather than chassis number. 6C8513007 ((6C8513007)) 1930's historical leads exist. Described since 1950's with engine 6C8513092 fitted. xxxx 6C8513007 Engine 6C8513007 existed separately from car last I knew. 6C8513008 2.4.1930 spider Zagato. First registered 2 April 1930, history described to 1934 6C8513009 7.1.1930 Cd'O History described through 1930 with leads to additional data 6C8513010 6C8513010 May exist as engine only ?? 6C8513011 1500cc 3.4.30 Cd'O 1500cc. History described 1930 to 1932 "6C8513011" "6C8513011" A pretender exists today as a "6C1750 spider Zagato" numbered "6C8513011". 6C8513012 1500cc 3.4.30 Cd'O 1500cc. Spider Zagato. History described 1930 to 1931 6C8513013 1500cc 6.4.30 1500cc. History described 1930 to 1940. A statement dating from 1964 declared WWII appropriation by German troops. "6C8513013" "6C8513013" A car exists today that seems to be based on a majority of parts that are most likely from chassis 6C0211499 fitted with a newly made body. 6C8513014 1500cc 5.4.30 1500cc. History described to 1936. 6C8513015 1500cc 5.4.30 1500cc. History described to 1932. 6C8513016 1500cc 29.3.30 1500cc. Extraordinarily well documented due to Lurani ownership and use. Raced at least once as 6C1750 and later with testa fissa engine. 6C8513017 ((6C8513017)) Sport spider Carrozzeria Sport - Milano … Described since 1980's fitted with engine 10914642. 6C8513018 Described since 1950's. 6C8513019 (nothing is yet known to me) 6C8513020 1500cc 7.2.31 Cd'O 1500cc. (earlier use possible) spider Zagato. History described 1931 to 1942 6C8513021 7.5.1930 Cd'O History described 1930 to 1938. Reportedly "Touring". 6C8513022 (nothing is yet known to me) 6C8513023 (nothing is yet known to me) 6C8513024 Reportedly existing today. No data reported. 6C8513025 6C8513025 Described 1930's and 1940's in general terms. Appears to exist from early days on a chassis that may be numbered "6C8513030"? 6C8513026 1500cc 1500cc testa fissa. "James Young". Known. Identity has been confused historically due to early engine swap with chassis 6C8513027. 6C8513027 1500cc 1500cc testa fissa. "Zagato". Known. Identity has been confused historically due to early engine swap with chassis 6C8513026. 6C8513028 ((6C8513028)) Conflicting data has been supplied from a car existing with this identity. Fitted with engine 6C8513030 and related ID plates. 6C8513029 (nothing is yet known to me) 6C8513030 Conflicting data reported about an existing car on chassis 6C8513028. Numbered chassis "6C8513030" may be under "6C8513025"? 6C8513031 1500cc ?? "1500" may be a generic reference from UK record? UK history described 1931 to 1934. 6C8513032 21.11.1930 History described 1930 to 1950. "6C8513032" "6C8513032" A claimaint to the identity (several years ago) did not seem to be made up of the correct sort of numbered components. 6C8513033 6C8513033 7.4.30 spider Zagato. History described 1930 to 1932. Frame number may hint at 1930 replacement? Lengthy period not described. Restored with new body. "6C8513033" "6C8513033" A second claimaint to the identity "6C8513033" (as of 2007) did not seem to be made up of the correct sort of numbered components. 6C8513034 6C8513034 Described since 1950's. 6C8513035 10.4.31 First sold 10 April 1931. History described to 1937. 6C8513036 History described 1932 to 1952. Described in period documents as "1500" but taxed as a 1750. 6C8513037 Conflicting data reported about an existing car. 6C8513038 History described 1930 to 1934. Identity claimed for a car existing today. 6C8513039 6C8513039 Z#800 History described 1930 to present. 6C8513040 History described 1930 to 1931. 6C8513041 6C8513041 Sport spider Carrozzeria Sport - Milano … History described 1930 to present. 6C8513042 Identity claimed for a car described since 1990's as "spider Touring" 6C8513043 (nothing is yet known to me) 6C8513044 (nothing is yet known to me) 6C8513045 6C8513045 Z#804 History described since 1950's. 6C8513046 History described 1930 to 1934. Identity "6C8513046" claimed for a car existing today. 6C8513047 Confused data received in past may refer to this car? 6C8513048 6C8513048 17.5.30 Existing today. 6C8513049 Corsica Body by Corsica - GB. History described from 1930' and 1950's. 6C8513050 (nothing is yet known to me) 6C8513051 1500cc 27.4.31 1500cc. History described to 1937. 6C8513052 ((6C8513052)) Engine 6C8513052 existed separately from chassis. 6C8513053 (nothing is yet known to me) "6C8513053" "6C8513053" Identity "6C8513053" claimed for a car based on a chassis identified in earlier paperwork as "6C8713760". 6C8513054 (nothing is yet known to me) 6C8513055 6C8513055 Described since 1950's including re-body 2000//2001 to spider "Zagato" form. Had been re-bodied by Lepori - CH 6C8513056 (nothing is yet known to me) 6C8513057 1930 historical lead can be studied. 6C8513058 1945 historical lead can be studied. 6C8513059 (nothing is yet known to me) 6C8513060 6C8513060 Body by James Young - GB (""). History described from 1950's and 1960's. Some confusion exists with 6C8513061. 6C8513061 ((6C8513061)) Body by James Young - GB ("coupe"). UK history begins 1931, apparently with the mistaken identity of "6C8513060". 6C8513062 (nothing is yet known to me) 6C8513063 spider Zagato … "Existing" 6C8513064 6C8513064 Z#818 Described since 1970's. 6C8513065 (nothing is yet known to me) 6C8513066 23.7.30 Described to 1936. Recently reported as "found". 6C8513067 20.5.30 Historical notes collected from 1930. More can be done to follow up on what we know. 6C8513068 Carrozzeria Simonetti - Padova. History described 1931 to 1958. Exists today. 6C8513069 (nothing is yet known to me) 6C8513070 19.8.30 Cd'O spider Zagato. History described to 1937 and perhaps later. 6C8513071 (nothing is yet known to me) 6C8513072 6C8513072 26.8.30 spider Zagato. History is described to 1932 in Italy and then through UK ownership. 6C8513073 26.7.30 spider Zagato. History described to 1935. 6C8513074 25.6.30 Pinin Farina. History described to 1936, followed up with a declaration made 1950. 6C8513075 6.8.30 History described to 1947. 6C8513076 1.8.30 History described 1930 to 1933. A claimant exists today that has been attributed to Aldo Cesaro. 6C8513077 ((6C8513077)) Engine exists separately from chassis. 6C8513078 Some historical data has been collected. There is a recent claiminat to the identity. 6C8513079 2.7.30 Cd'O History described to 1930. 6C8513080 6C8513080 29.7.30 sold History described 1930 to 1950. Chassis number reported in recent years with some confusions. "6C8513080" Data reporting confusions have also stated "6C8513008" and "6C8513086". 6C8513081 6C8513081 4.8.30 History described 1930 to 1938 and car reportedly continues to exist today in a museum. "6C8513081" There are one or more modern claimants to the identity of "6C8513081" at least one of which is attibuted to Aldo Cesaro. 6C8513082 (nothing is yet known to me) 6C8513083 25.7.30 History described to 1949. 6C8513084 There are reports from the 1980's of a car existing as "6C8513084". No data seen to date. 6C8513085 ((6C8513085)) 6.10.30 spider Zagato. History described 1930 to 1932. Confused data has been reported more recently. 6C8513086 31.10.30 spider Zagato. History described to 1935. 6C8513087 spider Zagato. Historical study leads exist for 1930 to 1938 time period and in the 1960's as well. 6C8513088 ((6C8513088)) Was Zagato. Car described since 1970's. Engine exists separately from car. Bodied "a la Touring". 6C8513089 6C8513089 History described during 1930's and spottily until today. 6C8513090 (nothing is yet known to me) 6C8513091 6C8513091 ** ** testa fissa 8-main-bearing. History described 1930's to today. 6C8513092 ((6C8513092)) History described 1930's until today. Engine fitted to 6C8513007. 6C8513093 (nothing is yet known to me) 6C8513094 15.10.30 spider Zagato. History described continuously from 1930's until today. 6C8513095 6C8513095 spider Zagato. History described 1930 to 1935 in Italy. Since 1950's in USA. 6C8513096 (nothing is yet known to me) 6C8513097 1500cc 13.8.30 1500cc. History described 1930 to 1933 and beyond. 6C8513098 (nothing is yet known to me) 6C8513099 6C8513099 Z#882 1930/1931 Early Royal ownership obscures earliest data. History described 1934-1938 in Italy. More recently described in USA and then back to Italy. 6C8513100 ((6C8513100)) Reportedly existing many years in France as "spider Zagato". 6C8513101 ((6C8513101)) 19.9.30 Cd'O History described 1930 to 1936. Engine known 1960's to 2003 in USA. 6C8513102 18.4.32 Cd'O History described 1932 to 1951 in Italy. Reportedly discovered as "wreck" in more recent times.