Before i got banned (yeah yeah u all prolly know by now), I managed to get insured on my mum's 172 for a month temp. Bearing in mind it's completely standard.
During the month I raced the following cars:
Vauxhall Corsa 1.8 16v (w/ chip, zorst, filter, remap)
Traffic light race. First gear he got a better start and pulled half a cars length on me. Just as he was changing to second, I hit 5k and BOOM! back level. Changed to 2nd, and hit the 5k mark again, pulled half a cars length on him. If I'd have kept going I'd have beaten him (into the back of a lorry).
Honda Civic Type R (standard)
This was closer than the corsa, and this was on the twisties (a road i know well). So I had an advantage. He was going first, and I following. I never left his back bumper, and as soon as I got to a wide bit, I was past. I pulled maybe a cars length on him tops, but he stayed with me. Quite a good bash
BMW Mini Cooper S Works (standard)
This was always set out to be a close run thing. The friend of mine who's mini it is, always said he wanted to race to see what it'd be like. This was a rolling race along a wide straight single carriage-way road. We both set off at the same time, and in 1st gear, we were neck and neck. His supercharger more than doing enough work to keep up with the 5k kick of my 172. In 2nd he started to pull away a bit. This was the trend that followed. Every gear he pulled another 1/4 or so cars length on me, but it was a lot closer than I expected.
Ford Focus ST2
This was fun, because my dad was driving the focus. We were on some twisties, and I never expected the focus to be able to handle itself on such a tight bumpy road, but handle it did. He didn't get too far in front, with the focus being so much heavier, if it'd been a straight line race, he'd have been all over me.