Mercedes-Benz India has launched the AMG A45 S 4MATIC+ performance-oriented hot-hatch in the country at Rs 79.50 lakh (ex-showroom, India). Available in a single variant, the hot-hatch has been brought in as a Completely Built-up Unit (CBU). It has no direct rivals in our country. The AMG A45 S takes its energy from the M139 2.0-liter 4-cylinder turbo engine that…