I've been running 100W bulbs in this car for 8+ years, and in my previous car before that as well. I have never had any problems.
I have changed over both the dip, and the full beam bulbs. If you are concerned, maybe only change ove rthe high beam.
And as to the race car, well it will do a 1min 20 sec around Pukekohe without pushing it too hard. It is, or should I say was, my daily driver, so it gets looked after.