When Mercedes-AMG launched the A 45 S AMG and CLA 45 S AMG back in 2019, they were (and still are) the most powerful four-cylinder cars on the planet. Now, Mercedes-AMG has plonked in the same mill into their sub-compact quasi-crossover — the newly revamped GLA — to give birth to the 2021 GLA 45 … Continue reading 2021 Mercedes-AMG GLA 45 debuts with 382 hp