Right, I've had a bash at Suzuka 500PP, my usual haunt.
For old time's sake, I used my Elise. I did a number of free runs first to get used to it, and my overriding impression was that of slowness. Because the new restrictions can't be used on tyres, they have to be used on weight and/or power. I get the impression the PP for each car has been reset too, as the car now makes 500PP with the same specs as before, just without being able to use racing tyres. Because you can't use racing tyres, the car has no speed (like before) but now with no momentum either because it's so difficult to carry the speed through the corner. Not only that, but the lack of drive means once you get into a drift, you can't really power out like you could before, so again you don't carry much forward momentum.
Into the race, and I could beat peopleon corners (as before) but with the lack of corner exit speed I was just getting decimated on the straights by Integras and the like, with my puny 130-ish bhp. So, my favourite fun 500PP car ruined by the new tyre regs.
Next I tried a FWD car, the Mini. This was one of the quickest before, and it proved quick still, only with a vast reduction in corner speed. 130R used to be taken around 118mph (at least this was the speed I always saw when I'd stopped concentrating on hitting the apex), now it's down to 100-odd. You can still make progress by being smooth, but the fun has gone now knowing that if you miss your braking point a little you have to slow down even more, rather than flicking it in. So, one of the fastest FWD cars ruined.
Next, a 4WD car. I bought a Delta Integrale because I hadn't seen any in the previous races, which I thought strange. Did a free run, completely standard settings but 500PP tune, and it out handled the Elise and Mini immediately, but was actually slower than both. A bit of adjustment and it matched their times. Now to the race. This was much more competitive and easier to drive, more forgiving - but still no fun. I stayed in 1st for a couple of laps and then got passed, and then got nudged off the circuit, by someone I can probably forgive as he seemed to be experiencing the same chronic understeer as everyone else now the N3 tyres are in place. I fought my way back to second and then remained about a second behind the leading Integra to the flag. Both of us were clearly struggling. So, a rally icon ruined.
A while back I defended the 500PP from someone calling it "slow". I'm afraid to report, that now it really is just slow. It used to have fantastic and close racing, now it's full of people struggling and expanded fields. I'm sure this will improve as people get used to it, but I have to say this is the worst update to GT5P so far. I'm going to try 600PP tomorrow and see if it's any better.