On Wed, 12 Feb 2003 11:09:29 +0100, "Stephen F."
>From the web:
>To give you an idea of the kind of performance GroupB cars were capable of
>I'll mention that in the 1986 season Henri Toivonen made two laps around the
>Estoril circuit, during a stage of the Portuguese rally, the fastest of
>which, in 1 minute and 18,1 seconds, would have qualified him in the sixth
>position of the F1 Grand Prix that same season. Ayrton Senna had the Pole
>Position in the 1986 Portuguese Grand Prix in 1 minute and 16,7
>seconds...Toivonen was using the Lancia Delta S4 and was accompanied by his
>usual co-driver Sergio Cresto. Keep in mind, however, that current GroupA
>cars are faster yet than GroupB cars used to be. This is mainly due to
>technology advances in tire formulations and suspension technology leading
>to GroupA cars being faster around corners but losing on straights as
>compared to GroupB cars.
This is an oft-repeated but rarely-substantiated anecdote. Let me
quote a 1999 post by Gunther Roland on r.a.s.f1.
"That particular piece of 'information' pops up on rasf1 every
couple of month and I still believe it is absolutely impossible.
Remember, we are talking about the 1.5l turbo engines with >1000 HP
in qualifying trim in 500kg cars, with wide slicks and big wings.
"The Group B cars had less power, more weight, higher COG,
no qualifying slicks, less downforce. There is no way they could
have gotten withing 2.5 sec of Ayrton Senna in a Lotus Renault,
Toivonen or not.
"The only possible source of this confusion I can imagine are the
lap times from the *WET* 1985 Portugese GP - these were about 20
sec down from the qualifying times. That might have been just
within reach for a Group B rally car.
"About the only advantage the Group B car had is AWD - and if you
compare todays FWD F2 rally cars with the AWD Group A on asphalt
that doesn't seem to make much of a difference (compared to say
a few 100 kg of weight difference)."
Martin