We’re talking about the 2015 Shelby GT350 and GT350R today and the sound that has made it the latest rage on YouTube, the sound that makes you wanna watch it again and again.

Now we’ve got a few videos up that show lots of this new car racing around the track and playing its song. It’s alluring, it’s sexy, and while its a new sound for Mustang, there’s something eerily familiar.

What is it? Well some of you have commented that it sounds remarkably like Steve McQueen’s 1968 Mustang from the chase scenes in Bullitt. Hmm mm, listen some more.

Now that would be rich wouldn’t? A modern day Mustang with the highest tech motor yet sounding exactly like something from almost 50 years ago?

After all that car had a lowly big-block truck motor with two-valves per cylinder and one cam between its banks.

Truth be told, the sound we heard in Bullitt, wasn’t that car at all. In fact, the sound was dubbed in from some other car all together.

This fact we only found out in the early 2000’s when Ford was pulling their hair out to duplicate it with their own Bullitt Mustangs.

Now we know all they had to do all along to get that sound was build an exotic V8 with a flat-plane crankshaft, variable valve timing, and yes a very engineered exhaust tune.