Actually, I could beat myself on a track racing a Type R vs. the 328. My BMW 325is is faster on a track and it only has 170 RWHP. Heck, my 115 RWHP 1st gen Rx7 can stomp all the above cars and your Diablo too, if you were driving. My 390 HP 355 C could beat your Diablo with anyone you want driving the Diablo. Wow, that all made me dizzy. Hey, your Diablo is quicker stripper wise from lap dance to hotel room than any of my cars!
I would reckon a Challange car could beat a street car, but if both were set-up the same, (same tires/brakes etc) id take that bet, especially on a track with any kind of straight. On a tight track with no speed, im sure the 355 would win.
I'm with you, I was just fishing, the Allan's aren't biting tonight. Bad Rob. I ban myself for 8 hours. Goodnight.