I'm cruising down I15 yesterday and I see a blue M Roadster hightail it onto the freeway. Traffic was just open enough to squirt through holes. I go to 15psi and catch up to him. Older guy out enjoying the day with the top down, I miss my old Roadster myself. He sees me catch up to him so we start speeding up. I could see him downshift as the back end squated at 60-70. We played some traffic football and I'm more than able to keep up with him. We trade a few leads here and there and it seems we are pretty evenly matched, it looks like from 60 - 100 if I get the jump I'm able to pull maybe a car ahead before he matches my accel. After a few miles of this the Scooby starts showing its slightly unsporting characteristics. The M Roadster was built to take this kind of street racing all day long, plenty of brakes, no heat issues, quick handling, etc - repeatibility, it's how I used to wear down other turbo cars. Meanwhile after one hard brake from 120 back to 80 (including other slower ones) my brakes are shuddering and fading. I can also feel the heat build up in the engine as the power band starts to flatten out a little, still pulling but not as sharp. We finally get to a point on 163 where it's wide open, I'm in front, he's about a car length behind. I made the mistake of starting at 90, I floor it, he reels me in and is in my draft, I can't pull away he can't get around me - up to about 120. We both slow, now he's on the side and is pushing his own wind this time. Starting from 80 or so I get a small jump, put about a car to 100, put another car to 120, put another car to 130, he isnt falling as fast now, by 140 (no whistling either) Im about 4 cars ahead and he can't catch me. I was surprised to say the least, I had my 01 Roadster up to 150+ (top down) and was able to hang with a new 300HP 911 Carrera before (60-130+), maybe he had a tired one or wasnt shifting right. I did have a Dinan chip, IIRC the Roadster was limited to 138 or thereabouts on a stock ECU. The guy was cool, we slowed down and he yells over "Those are just as fast as I thought they were!"
After this my Scooby needs suspension (going with full STi), better cooling on the brakes (whatever fits under stock rims, no bling for me) and better cooling for the engine (that new TurboXS intercooler?). More power later, as you can very easily overpower the car in stock form.
Oh yeah I almost forgot...doing a long sweeper at 130+ is awesome with AWD, even on the stock RE71s! The M had to slow down. Previously I had to be on my toes doing that in various BMWs, but the Scoob just took the throttle and clawed right in.