This is an attempt to outline the rather poorly documented American races in Germany of the 1950s and early 1960s.
First of all, there were the Eifel Motor Sport Club (EMSC), founded in Bitburg in 1953, and the Hesse Motor Sports Club (HMSC), founded in Wiesbaden in 1954. Both still exist today.
The latter club is best known for organising the Pferdsfeld airfield races:
03.04.1955 - 1st Pferdsfeld Races 18.09.1955 - 2nd Pferdsfeld Races 29.06.1958 - 1st Wiesbaden National Benefit Races (marred by a severe accident) 12.10.1958 - 3rd Pferdsfeld Races ('Columbus Day Races') 08.03.1959 - 4th Pferdsfeld Races 06.03.1960 - 5th Pferdsfeld Races 19.03.1961 - 6th Pferdsfeld Races 31.05.1959 - 1st International Pferdsfeld Races 08.05.1960 - 2nd International Pferdsfeld Races - cancelled 16.10.1960 - 2nd HMSC Races (Nürburgring Südschleife / not sure when or where the 1st edition was) 07.05.1961 - 3rd International Pferdsfeld Races 06.05.1962 - 4th International Pferdsfeld Races - cancelled
The HMSC organised at least two further meetings in the mid-1950s - the Landstuhl Air Force Base Road Races and Sembach Air Force Base Road Races - which are mentioned online twice, here and here:
If there was any doubt that the name of Sebring was being carried around the globe, evidence was presented in June, when a local boy stationed in Germany informed the Highlands County news that a 'Little Sebring' race had been staged by the Hesse Motor Sports Club in Landstuhl, Germany. The competition was run on a 3.9 mile course, which had been laid out on an unused airfield. Pvt. Alton Harnage said he also had seen newsreel footage of the Sebring races, and became homesick when he recognized Bucky Kahn cavorting around the track.
Johns compiled an enviable record of wins in European motor sports during his three-year stint there. He competed in more than 25 events and scored several important victories including first place finishes in the Eifel Motor Sports Club's annual lap times on the Nurburgring course; Landstuhl Air Force Base Road Races and the Sembach Air Force Base Road Races.
As the German media did not cover these events, nothing further is known. In later years, the HMSC ran races in Hockenheim and at Mainz-Finthen airfield.
Around the same time, the Eifel Motor Sport Club organised races at Trier-Euren airfield:
xx.xx.1956 Trier Airport Races (1) 28.04.1957 Trier Airport Races (2) ('Eifel-Race-Meeting') 27.04.1958 Trier Airport Races (3) 10.05.1959 Trier Airport Races (4) 08.05.1960 Trier Airport Races (5) 30.10.1960 Trier Airport Races (6) 21.05.1961 Trier Airport Races (7) 27.08.1961 Trier Airport Races (8) 10.06.1962 Trier Airport Races (9) 19.08.1962 Trier Airport Races (10) 05.05.1963 Trier Airport Races (11) 13.10.1963 Trier Airport Races (12) 03.05.1963 Trier Airport Races (13) 25.07.1965 Trier Airport Races (14) 01.05.1966 Trier Airport Races (15) 01.05.1967 Trier Airport Races (16) - cancelled
Aside from these races, I found three more dates for the year 1957. All three events took place, but I'm not sure who organised them:
03.03.1957 Wachenberg Hillclimb 12.05.1957 Race on the Nürburgring 22.09.1957 Hockenheim-Ring-Races (organiser: ISCC ?)
Then in 1958, the American Touring and Motorsport Association (ATMA) was founded in Frankfurt am Main, apparently as a sort-of umbrella organisation for the American clubs in Germany. ATMA announced these races for 1958 and 1959, but of most events it is not known if they took place or not:
27.04.1958 Trier Airport Races 29.06.1958 Pferdsfeld Races (moved to Wiesbaden-Erbenheim airfield) 20.07.1958 Zweibrücken Airfield Races 31.08.1958 München-Schleißheim Airfield Races 05.10.1958 Wachenburg Hillclimb (sic) 12.10.1958 Nürburgring Races 26.10.1958 Kaiserslautern Hillclimb 16.11.1958 Bitburg Hillclimb
01.03.1959 Wolfsfeld Hillclimb (near Bitburg) 08.03.1959 Pferdsfeld National Races 19.04.1959 Taunus Hillclimb 10.05.1959 Trier Airport Races 31.05.1959 Pferdsfeld International Races 28.06.1959 Sembach Races (or 16.08.1959 / tentative) 12.07.1959 Leipheim Races 06.09.1959 Pirmarens Hillclimb 04.10.1959 Wachenburg Hillclimb (sic) 25.10.1959 Wolfsfeld Hillclimb (near Bitburg)
One additional meeting not listed is known to have been held:
06.09.1959 Nürburgring Races (Betonschleife) (Link)
There was also an ATMA championship at least in 1960.
Anyone know more ?