First ride: 2019 Mercedes-AMG A45 S prototype

Most potent A-Class ever proves a capable drifter in an icy first passenger ride ahead of an official launch later this yearIt’s covered in kaleidoscopic plastic wrap camouflage. Inside, it glistens with high definition graphics. A good five months from its planned UK introduction, it is still very much a prototype with cabling and other paraphernalia used to attach data logging and testing equipment scattered throughout its cabin. Whenever I get up close to it I’m joined by a German