When you spend enough time around cars, and have an ear and an eye for all the finer distinctions that differentiate 'good from bad' and 'this from that', and on top of that you spend a year plus with a Gallardo V10 over your shoulder, and then switch to an R8 4.2 over your shoulder, in addition to owning and RS4 with the same motor while you also own the gallardo, you have a good chance at knowing the difference.

People who are are longstanding enthusiasts and owners of various pieces of fine machinery can become very skilled at differentiating machinery based on fine nuances. Moreover, if those same people also are fluently multilingual and/or have musical talent or even an ear for such things, then they've got an even better shot at being right in a case like this.

Just as some people can't tell the difference between a V12, W12, V10, V8 or V6, there are others who can. Some people can't tell the difference between a kiwi, ozzie and a brit. Those same people would be the ones to argue that no one can possibly tell the difference because they know plenty of people who can't. Birds of a feather flock together.

Which crowd you belong to is self evident.

Other than witless bravado, what do you have to offer?

Current: '03 allroad

Past: '00 A6 4.2, '99.5 A6 avant, '91 200q 20v, '90 90q 20v, '86 5ktq