It's time for another petrol vs electric drag race! Mats rolled up in the Mercedes-AMG GLC 63 S, and he's going up against the Audi RS5 Sportback and Tesla Model 3 Performance! They've all got slightly different body shapes, but there's one thing they have in common... They're all FAST! The GLC 63 S is the most expensive at £88k, but will its 4.0-litre twin-turbo V8 help it overcome the RS5 and th
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