There was no restriction on the number of cylinders...only the overall engine size was limited to 4 litres.etouring wrote:
I may be wrong but I was under the impression they had to use a 4 pot to race in the series must be the only reason they made the s14 in the first place. M88 would have been awesome! They almost got there with the 333i using the m30 personally that would be my ultimate collectors E30
Audi used a V8 in DTM and Opel used a straight 6. Prior to the M3, BMW were racing both 635CSis and 325is in the DTM to group A regs and Rover were racing the SD1 V8. Also Holden were racing the V8 Commodore.
The less than 4 litre rule was designed to exclude the XJ12 and american V8s such as the Mustang.
Class B (which included the M3 and Merc 190E) was primarily populted by 4 cylinder NA cars, but the 325i and the Mazda 9/Xedos 6 were exceptions to the rule...