Audi A4 1.8t. Sure, it may be the little brother of the 3.0 model, but depending on what the driver wants, a very good argument could be made for the turbo model. At 170 horsepower and a 0-60 of 7.9, it isn't a slacker. The famous Quattro All Wheel Drive system is present on both models, but the 3.0 is blessed with a 6-speed manual transmission that launches the 3.0 to 60 in 6.9 seconds. One second difference. So for the daily driver guy who does not care to bring his car to a whole new level of potential, the 3.0 quattro will suit him just fine. It's zippy, throaty V6 with an extra gear will make driving enjoyable in long nights.

Both interiors gleam luxuries passings and sooth you with a comfortable yet functional ride. It is a luxury car after all.

But tuning is where the 1.8t outshines the 3.0. The 1.8t is already shared in a multitude of other cars that are gracing the performance world. Audi TT, Jetta GLS, and Bettle Turbo S all have the same platform, so the engine is very familiar within the tuner world. Being a turbo engine means small upgrades make large difference. For those who desire simple things, special chip upgrades can be made to the car that would boost output by about 40 hp and 55 ft/lbs of torque. This mod itself would bring little brother right behind his v6 sibling. All for a fraction of what it would cost to have purchased the 3.0 to begin with.

The best way to describe the difference between the turbo 1.8t and the naturally aspirated 3.0 is to say that the 1.8t's potential level will continue to soar long after the 3.0 has reached it's peak.

For those with some money to kill, look forward to the new S4, which will again bring out the debate of turbo vs bigger engines. 2.7t vs V8 stuffed in an A4 body.