Next-gen hi-po crossover spotted near the 'Ring with heavy camouflage concealing most of the car's design details.
- shares

Photographers have snapped a prototype for the next-generation Mercedes-AMG GLA45 testing around the Nurburgring, ahead of an anticipated launch sometime in 2020.

We haven't seen too many images of the all-new GLA, but given its global sales success it's a safe bet Mercedes is planning another full range of pint-sized crossovers, likely including AMG 35 and AMG 45 models along with electrified variants.

Being based on the new-generation A-Class, the AMG GLA45 will draw upon the high-output 2.0-litre turbo four that does service in the new A45 and CLA45, which has claimed the title of most powerful production four-cylinder engine ever.

In flagship 'S' guise, the blown four-pot develops a massive 310kW and 500Nm, and is mated to an eight-speed dual-clutch automatic sending drive to a variable 4Matic+ all-wheel drive system with Drift Mode.

The A45 S claims a 3.9-second sprint to triple figures, so we'd assume the taller and heavier GLA45 will add a few tenths to that and be capable of an electronically-limited top whack of 250km/h.

Other unique specification will include larger wheels shod in grippy performance tyres, larger brakes with six-piston calipers up front, along with lowered and firmer suspension compared to garden variety GLA models.

As shown by the prototype pictured here, the GLA45 will get a version of the brand's Panamericana front grille, quad exhaust pipes, a more aggressive body kit and larger front intakes to feed air into that beefy turbocharged engine.

We're not entirely sure when Mercedes plans to reveal the new GLA, though standard versions could debut as soon as the Frankfurt motor show next month.

As for the AMG45 model, that's likely to be revealed early next year, perhaps around the same time as the Geneva motor show in March, before going on sale by the end of 2020.

Stay tuned to CarAdvice for all the latest, and click on the images for the full gallery.