Ask any auto critic if they had to choose only one new Acura in recent memory to call their own and it would be the TL in a landslide. So this all-new 2015 TLX, the TL’s spiritual successor, has a lot of responsibility riding on its tires.Though the bread is buttered with SUV sales at Acura these days, the 4th generation TL has been the brand’s best-selling car with the TSX compact sedan and wagon fighting it out with the ILX for 2nd. But now, the discontinued TL and TSX become 1 so to speak in the new TLX. Kind of makes you miss a name like ‘Legend’ doesn’t it?