2025 Audi RS3 review | CarExpert

There’s just something about the sounds of an unbridled five-cylinder engine – the distinctive warble at idle, the lowdown growl, and the meaty roar at the top of the rev range.

It’s a unique symphony that I’m well acquainted with, as the owner of a 2008 Volvo C30.

I playfully call that car the ‘Aldi R8’ as a means of convincing myself the unmuffled turbo-five sounds like a cut-price version of the V10 found in Audi’s iconic supercar. And I’m not the only one to consider the inline-five layout a ‘baby V10’ of sorts.

But the future is bleak for those after an exotic powertrain on a budget, as five-cylinder power is on the brink of extinction. Volvo went down the downsizing route nearly a decade ago, while Audi has now discontinued the R8’s true little brother – the TT RS.

That leaves the Audi RS3 as the last remaining five-cylinder car on sale in Australia.