the only porsches that have ever been in GT games are RUF tuned ones.
EA owns exclusive liscense on Ferrari, Lamborghini, and Porsche ever since Need For Speed 1.
but RUF technically qualifies as a 'manufacturer' not a 'tuner'... so if you want porsches; look under RuF.
Before you know it, EA will pull the same bullshit they did with footall and buy exclusive rights to every car manufacturer in a video game also...
Still fuming about the bullshit they pulled with the NFL licenses. Not that madden games aren't good, but now there is no competition, and NFL 2k5 was probably the best 20 dollar at release game released on the xbox...