Hello
Found some pics and info on a 1981 Shell eco marathon VW golf Mk1 diesel, and Formel E road car.
Marathon Golf 1600cc diesel:
-smooth wheel covers
-grille block
-air dam
-roof extension
-side skirts
-aero A pillar covers
-exterior mirrors removed
Formel E 1100cc petrol:
-Front spoiler
-aero A pillar covers
-extra long economy 4th gear
-gear shift indicator
-fuel comsumption gauge (works in 4th gear only)
-high compression 1.1 GG engine
Apparently some Formel E models (not sure if the golf is included) had a stop/ start system.
And from this thread
http://ecomodder.com/forum/showthrea...2-12384-5.html Cd & CdA values for the mk1 golf:
Mk1 Cd: 0.42
Mk 1 Cd.A = 0.83
Havent been able to find figures for the Shell marathon or Formel E cars, or which model the 0.42 Cd is attributed to.
Interesting the Mk2 golf which is also pretty much the same shape (but larger) has:
Mk2 Cd: 0.34
Mk 2 Cd.A = 0.70
Probably due to both detail and shape optimisation (think this was in Hucho's book).