This program is definitely not for everyone

The Mercedes-AMG GLC 63 S Coupe is, by most accounts, a slick-looking performance coupe-SUV. But like most vehicles — and that includes performance-spec models — there are ways to make a model like the AMG GLC 63 S better. There are ways to make it look better, and, certainly, there are ways to make it perform better.

Noted Mercedes tuner Lorinser took up the task of transforming the AMG GLC 63 into a better all-around coupe SUV. The German tuner is known for its programs for Silver Arrow models so this new aftermarket kit for the high-powered GLC should be a walk in the park, right? Right? Well, let’s save the verdict below.

What kind of aesthetic improvements did Lorinser do on the Mercedes-AMG GLC 63 S Coupe?

2020 Mercedes-AMG GLC 63 S Coupe By Lorinser - Ugly Car, Ugly Wheels, More Power
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On the coupe SUV itself, Lorinser’s only contribution to the tuning cause is the carbon fiber side mirror caps. That’s essentially it. The rest of the AMG GLC 63 S Coupe’s body remains intact so don’t expect anything out of the ordinary in this department. Perhaps leaving the body of the SUV alone was Lorinser’s way of shining the spotlight on the real items it wants the showcase: the wheels.

What you’re looking at is a set of the tuner’s new LM24 alloy wheels. The wheel set was introduced earlier this year and it’s available for both the SUV and coupe SUV versions of the GLC. On the latter, the wheels measure 21 inches in the front and back, and if you’re not a fan of the hyper silver finish that’s shown in the press photos, you can for an alternate black finish.

2020 Mercedes-AMG GLC 63 S Coupe By Lorinser - Ugly Car, Ugly Wheels, More Power
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At the very least, it’s nice that Lorinser is offering those options because the wheels themselves don’t look all that appealing.

Granted, the design does evoke memories of the S-Class Q140 that served as Merc’s flagship model from 1991 to 1998. It’s a good piece of trivia because that’s all there is to it about these wheels.

To be blunt about it, they don’t look good on the AMG GLC 63 S Coupe. I’ll take it a step further; the wheels don’t look good on any of Mercedes’ or Mercedes-AMG’s SUVs.

Can the engine upgrade program make up for the set of wheels?

2020 Mercedes-AMG GLC 63 S Coupe By Lorinser - Ugly Car, Ugly Wheels, More Power
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I suppose we can thank the good Lord that Lorinser also added an engine upgrade program for the Mercedes-AMG GLC 63 S Coupe. Without it, I don’t know what to make of this program for the performance coupe SUV. Fortunately, the German tuner is offering a power module for the AMG GLC 63 S Coupe’s 4.0-liter twin-turbo V-8 engine that adds a hefty amount of power to the coupe SUV’s cause.

With the module in place, the twin-turbo V-8 unit can produce a stout 582 horsepower and an even more impressive 609 pound-feet of torque. That’s 79 horsepower and 93 pound-feet of torque more than what the stock AMG GLC 63 S Coupe’s twin-turbo V-8 — 503 horsepower and 516 pound-feet of torque — is capable of producing.
2020 Mercedes-AMG GLC 63 S Coupe By Lorinser - Ugly Car, Ugly Wheels, More Power
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Lorinser didn’t reveal any performance numbers, but you can expect the tuned AMG GLC 63 S Coupe to be faster to 60 mph than the 3.8 seconds it takes the standard model to reach that mark. Perhaps the Lorinser-tuned coupe SUV can do the same deed in around 3.6 seconds? That’s certainly in play, as is a top speed of more than 174 mph, which happens to be the top speed of the standard AMG GLS 63 S Coupe.

All told, Lorinser’s engine upgrade program for the Mercedes-AMG coupe SUV makes up for the tuner’s curious choice of wheels.

How much does the whole program cost?

2020 Mercedes-AMG GLC 63 S Coupe By Lorinser - Ugly Car, Ugly Wheels, More Power
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Combine the cost of the carbon fiber mirror caps — €799 ($914) — with the cost of the new set of wheels — €2,900 ($3,312) — and the engine upgrade program — €2,499 ($2,859) — and you’re looking at a total expense of just shy of $7,000. That’s pretty cheap for a tuning program for Lorinser.

Kirby Garlitos
Automotive Aftermarket Expert - kirby@topspeed.com
Kirby’s first exposure into the world of automobiles happened when he caught Knight Rider on television as a five-year old boy. David Hasselhoff didn’t leave much of an impression on him (that happened later on in Baywatch), but KITT certainly did. To this day, Kirby remains convinced that he will one day own a car with the same ‘spirit’ as the original KITT (not the 2008 monstrosity). He doesn't know when that will be, but until then, he’s committed to expressing his love for KITT, and all cars for that matter, here at TopSpeed.  Read More
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