TT and twincharged are two different things. the twincharged cars are becoming more common, but still very very uncommon. Growing in popularity and actually being popular are two very different things. TT 4 cyls are few and far between. end of story

 

That's because any TT on a 4 banger is unpractical but there are plenty of people out there who's soul ambition is to be different from everyone else. Which is like 95% of the ricer problem right there... they all wanna be different. They just wanna "express" themselves through there car. I say everyone should have a black F-body, end of story!