yea....the 25 is a good motor, but if you want 500+ hp you need a ton of cash. The AC is GONE in the 240 mostly because its built for the track/fun street driving. If i want ac ill just drive the Z. you can get ac to work in the rb its just more trouble that what it was worth to me. i agree the 240 is fun as hell and light, but the z is just solid and elegant i guess is the word. the 240 is the whore and the z makes you work for it :).