Audi’s 2.5-liter inline 5 engine has earned yet another accolade from the “International Engine of the Year Awards,” winning out in the 2 to 2.5 liter category.
The engine was praised for its torque and power (400 hp, 354 lb-ft of torque) and its distincitve sound. Whereas the firing order of most I5s is 1-5-2-3-4, Audi’s I5 fires 1-2-4-5-3, lending it its distinctive rhythm.
The odd numbered engine dates back to the days of the legendary Quattro and carries a lot of meaning for the brand.
“The five-cylinder has been an icon of our brand for more than 40 years,” said Oliver Hoffmann, Head of Technical Development at Audi Sport. “Two years ago we completely redesigned the 2.5 TFSI and changed the crankcase to an aluminum version.”
The engine finds a home in some of Audi’s most impressive small cars. The supercar aping TT RS and RS 3 both make use of the I5 and both punch well above their weight.
And no wonder since the Audi’s is the most powerful I5 on the market, though, admittedly, we had trouble finding anyone other than Ford (in the diesel Transit) who used an I5.
Still, though, the engine has proven itself as one of the true classics of the genre.