It boasts of being the fastest hatchback sold in the country. It has a 2-liter 4-cylinder turbocharged engine producing 421bhp and can do a 0-100km/h stint in 4 seconds. Now those are numbers that are damn impressive, and what achieves those numbers? The all-new Mercedes-AMG A45 S 4MATIC+ Watch us take it to its limits at the Natrax Centre, which again is the country’s longest high-speed test track facility.