Choosing between the 15-speaker, 710W of Burmester sound or the “real performance” sports exhaust is a tough call, but let’s file that under first-world problems. The real tech though lies in the mechanicals of the GLC 43 Couple. The 4Matic 4WD system is heavily rear-biased, preserving its sports-car-ish feel and with rear-wheel steering, it manages to be super sharp around the corners. Sure, it’s stiff and the sports seats don’t hold any sensations back but it all helps to make this 4-cylinder AMG feel at least like an inline-6, if not a V8. Acceleration is relentless and almost instantaneous using the e-turbo tech borrowed from Formula One. It uses a 48V motor that always keeps the turbo under optimum pressure, ready to deliver power on demand, eliminating the need for it to spool up. In reality, it decreases the turbo lag instead of eliminating it, although there’s hardly any reason to complain. The GLC 43 Coupe gains triple-digit speeds in under 5 seconds and for a 4-cylinder engine lugging such a heavy car, it’s nothing short of impressive. Mercedes has mercifully eliminated one big annoyance though - the speed limit buzzer. Long dreaded for its intrusiveness and even attenuating music playback to make itself heard, finally the GLC 43 Coupe is free of its crutches. The throaty exhaust can be enjoyed in all its glory and while it doesn’t have the guttural low-end rasp of its V8 siblings, it is still a very addictive sound nonetheless.