the 4agze was and is still a very good motor and because of the supercharger they came with forged pistons etc. not sure about the 204kw but i wouldnt be to shocked if it was true. How about the 3sge (2ltr twin cam), it comes in celicas, currens and rav4s, all different spec but same block. you can get sheit loads of hp out of them and theres heeps of spares and mod parts. Im not sure how much one would weigh though.