Any comments, opinions, etc.
"Early performance concessions given to the BMWs later proved a
liability to the Porche contingent as the PTG cars were developed. The
tech committees were forced to re-evaluate and then rescind the
favorable weight limits given to early M3s. Whether this was a result
of superior design or hard work on the PTG's part is still open to
highly partisan conjecture in both camps.
As it stands, both cars run six cylinder engines, but the 24-valve M3s
are limited to 3.2 liters with an 8,250-rpm limit, while the 12-valve
Porches run at 3.8 liters with no rev limit. Porches can race with
6-speed sequential transmissions while the M3s are limited to 5-speed
'boxes. Most important to the Porches is tire width. The 911s are
allowed 14-inch wide rear tires while the BMWs must make do with just
12 inches. Through few of the specifications changed on this year's M3
racecars, these were all-new replacements for last year's war horses.
Under American Le Mans Series rules for '99, the Bimmers are
homologated at 2,530 pounds (120 more than '98), but the Porches can
race at 2,310 pounds. The Porches also have an aerodynamically superior
shape, which gives them a slight advantage in top speed."
-- "The Small Detail: When it comes to big wins, it's the
little stuff that snags you.", Bimmer Magazine, June
1999, By Peter Brock