Tonight I had several head to head runs against my friend's 03 M3 SMGII. We did several runs a few months ago and I also posted that duel HERE
Now, here are the conditions tonight:
one person in each car. My friend and I are at the same weight.
His car has more options thus weights approx. 40 kg more. With my exhaust setup I'm almost 60 kg lighter.
My car is at almost 9000 km and his car is at 40000km.
Both of the cars had half tank fuel.
Unfortunately I forgot to select S6 in manual mode. My car was at S5 vs his car was at S6.
We did several runs from 2nd gear from 60 km/h to up untill 200 km/h. We also did several runs from 3rd gear 90 km/h to up untill 200 km/h. We were DEAD even. Since my car is lighter, I guess his bone stock car is making about 10-15 more hp.
I don't know how much difference could S5 vs S6 make to this result but I guess it would give me slight advantage if we were both in S6 mode.
Here is the interesting part:
we also did a few runs at 4th gear from low rpms. This time I passed him about 1 car length and it increased as the speed increased. I didn't understand why but I guess, due to lack of power at low rpms, my lighter car is faster.
If you read it from the above link, his car was 1-2 car length faster before I put the SS race muffler and the SS X-pipe (my car was at 5000 km)
Let me tell you that his bone stock M3 is somehow faster than his girl friend's 360 Modena
I don't try to tell you that an E46 M3 is faster than a Modena. I'm just pointing out that his car is a strong example.