The RAV4 swap is hilariously overpowered for the PP value, mine is sitting at 655 PP fully tuned on RH and can win WTC 800 races. WTC 700 at Le Mans it'll run under 3:50 without any trouble while saving a ton of fuel to do 3 laps, won by nearly 3 minutes. Detuned to 500 hp on road tyres also works nicely, makes for a really fun off road option too. Also tried out the Audi TTS '09 swap and it's also very good, pretty much in line with the other Gr.B swaps. Not sure how good the fuel usage would be at Tokyo for WTC 600, swapped in the stock car is just under the PP limit so I'd assume it might be a good option there too.