Here's an interesting comparison test between two of the hottest hatchbacks on the market at the moment: the Mercedes A45 AMG and the BMW M135i. The new A45 AMG from Mercedes is powered by a 2.0-litre 4-cylinder turbo engine that's capable of delivering up to 360 hp and 450 Nm of torque. With this powertrain, the A45 is able to accelerate from zero to 62 mph (100 km/h) in just 4.6 seconds. The M135i Bimmer, even though it has a much larger 3.0-liter 6-cylinder turbocharged engine, it develops just 320 hp and 450 Nm of torque. The M135i is rated with a 0-62 mph (0-100 km/h) acceleration time of 4.9 seconds. The Mercedes A45 AMG has another advantage over the M135i. Both hot hatches come with and AWD system. The Merc has its 4MATIC system, while the Bimmer comes with the xDrive system.
Both, the A45 AMG and the M135i have their strong points, so it's pretty difficult to choose a winner without a real life test. This comparison test is being conducted on the race track.