ok lets compare the 2 cars, and to make it fair we will use the jap spec R model at 185kws it comes in at the same power output as the s2000. 1.both cars come in at smilier times both cars will run low 14s to high 13 quarter times put them on a twisty track and the s15 is away low down tourqe will make short work of your s2000 wich has a very limited power curve to work with. 2. tunability? s15 wins hands down, thanks to a engine/driveline/chassis combo thats been around probably since u were in primary school and has more aftermarket support than any engine world wide,drop a front mount, intake, boost controller and a full exhaust system and its good night to the s2000. as for the s2000 after an intake and exhaust your looking at big big dollers to get this thing realy screaming thats if u go n/a if u go turbo your looking at $30,000 on top of a $70,000+ if u were to buy the car new, thats skyline gtr territory and lets just not go there. as for skylines and silvias not be being sports cars? let me ask u this are u saying your stivo is? your stivo is nothiing but a shoping trolley that some idiot at toytota thought it would be a good idea to stick a celica engine into. please dont ever compare a stivo to a silvia/gt skyline these cars are sports, every thing about them has sports car riten all over it unlike your stivo that handels like a shopping trolley and is just as slow, saying that i know how slow 32 gts are they would struggle to turn 120kws at the wheels these days but remember how od these cars are now, thats not to say a little tuneing wont turn them around so before u open your big mouth the only person on here that needs to grow up is u lol cause u seem to have little corolla syndrome u know the like the little dog with the big bark but nooooooo balls to back it up :D :D :D edit: to make things clear at the chance of looking like a stivo hater id like to say there not that bad, but dont compare them to sport coupes cause your way out of your leage