Mercedes-AMG One is one step closer to production

The Mercedes-AMG One is ready for the track.

The German firm, a part of Mercedes-Benz, announced it's now testing the supercar -- with its final powertrain turned all the way up to 1,000 horsepower.

The One's seen its delays, but it's no easy task plopping a Formula One engine into a road car.

Surely, it'll be worth the wait.

We previously saw the One hit public streets in earlier testing years back.

The automaker has already spent hundreds of hours developing the car digitally, and it's undergone real-world tests on the dyno, which replicated some harsh on-track conditions.

It's not exactly easy to disguise this car, especially considering the engine is spitting out F1 noises, which are more aggressive than even the gnarliest hypercars.     

Its F1-derived powertrain uses a tiny 1.6-liter V6 in conjunction with four electric motors to put out more than 1,000 horsepower.    

The automaker has a planned production run of 275 cars, and each will cost the euro equivalent of $2.72 million.