When the 206 gets 1/2 day down the strip, it will have built up enough speed so that body panels will start to peel off. You've just got to hope it disintegrates before the finish line.
My mate had a 206 GTi, same spec. He went on to me about how rattley and tinny it was, I thought it was just because he'd come from owning a Mk4 Golf. Then he took me out in it and I had to bite my tongue, it was shocking, 80k on the clock and it sounded like it was falling apart.
I'm going to buck the trend and say I think the IS200 shifts, and my last car was a MG ZS180 (with a few tweaks too), it would hit 60 in less than seven seconds. I can't explain why I think the Lexus is quick, I think it's just the smooth and consistent way it builds up speed. On a country road the handling and brakes make up for the lack of power.
But yes in a straight line with a modern turbo diesel alongside it does show that it's not a quick car. Some crappy Kia Proceed diesel whupped me the other day. I still felt superior though lol.
Good luck with the race. Empty the boot out, including the spare wheel. And don't tell her about that track :)