In a world where fairly unremarkable trucks and SUVs can still reach the $100,000 mark, luxury brands have had free reign to churn out cars that command prices previously unthinkable only a few years ago. SUVs are one of the most popular markets right now, so naturally nearly every manufacturer now sells a high-end SUV.

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While some models still retain the off-road capabilities that once defined the segment, many manufacturers don't bother about any other terrain than tarmac. That's largely thanks to the SUV-buying population being more likely to mall crawl than rock crawl. Still, it's a shame to see these cars lose the one capability that once made them special, especially since these examples are so costly. Let's take a look at ten of the priciest SUVs that shouldn't be taken anywhere but the tarmac.

10 Mercedes-Benz G63 AMG - $156,500

Mercedes-AMG G63
Via Autocar

Mercedes' G Wagon was originally a military vehicle, built for the German army. For several decades it was used primarily as an offroad SUV, popular with European farmers for its ruggedness and functionality.

Mercedes-AMG G63
Via Dresden Motors

When it began to get popular among celebrities and urban buyers, Mercedes redesigned the G Class to make it more comfortable for the road. They also stripped out nearly all of its offroad capabilities. The AMG G63 is the ultimate road-spec version of the G Class, designed to be fast on tarmac and luxurious inside. Its' dirt road days are truly behind it.

9 Bentley Bentayga - $157,000

Bentley Bentayga
Via Motor1

The Bentayga has proved a hugely popular move from British brand Bentley, injecting a new lease of life into the brand when sales were flagging in other segments. Bentleys have never been designed as off-road cars, so it's no surprise the Bentayga is useless on dirt.

Bentley Bentayga
Via Guide Auto

It's ultra-luxurious and a surprisingly engaging car to drive, and it's fast too, with a 0-60 time of just 3.8 seconds. The W12 engine is a Bentley signature meaning the Bentayga is as smooth as it is fast, as long as drivers never leave the asphalt.

8 Audi RSQ8-R ABT - $200,000

Audi RSQ8-R ABT

Audi tuners ABT took one look at the brand's top-spec RSQ8 and decided it wasn't fast enough. So, they bumped up the RSQ8's engine from 600hp up to 700hp, and added a host of other performance tweaks to ensure the SUV stayed sharp.

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Audi RSQ8-R ABT

The low ground clearance and insane powertrain makes this big SUV drive more like a racing car, albeit notably heavier. Despite its SUV origins there isn't a single part of this car that's been designed for off-road driving so it's best not to take it there.

7 BMW Alpina XB7 Bi-Turbo - $143,000

BMW Alpina XB7
Via Motor Authority

The XB7 is the latest creation by Alpina, BMW's in-house coachbuilding specialists. It takes the top-spec X7 and adds more of everything. Power is upgraded to 623hp, and Alpina have fully reworked the interior with fine leather and precision-machined metals.

BMW Alpina XB7
Via Carscoops

The Alpina also comes with a set of signature wheels, to provide a neat visual reminder that this is one very special SUV. It's a huge luxury tank with all the trimmings, but that means any off-road excursions may well end in disaster.

6 Aston Martin DBX - $193,000

Aston Martin DBX
Via Guide Auto

The Aston Martin DBX is Aston's first and only entry into the SUV world, and it's not their best car by a long way. It's also hideously expensive, with the addition of a few optional extras easily pushing the car into $200,000 territory.

Aston Martin DBX
Via Driving UK

That's a huge amount for a car that's not really the best at anything in its class. It's an SUV designed for wealthy owners to cruise around cities in, and as a result it's likely to be woeful on rougher terrain.

5 Maserati Levante Trofeo - $171,500

Maserati Levante Trofeo
Via Motor1

For those who don't mind some of the worst depreciation on the market, the Maserati Levante Trofeo is a left-field alternative to the usual G Wagons and Range Rovers.

Maserati Levante Trofeo
Via Maserati USA

It's powerful, and it's luxurious enough to compete with the rest of its class, but it's struggled in sales in part due to Maserati's poor brand image. It doesn't help that it's essentially a lifted and upgraded Ghibli, making it useless on anything other than tarmac.

4 Porsche Cayenne Turbo S E-Hybrid - $137,000

Porsche Cayenne Turbo S E-Hybrid
Via Motor Trend

Porsche's Cayenne line has never pretended to be off-road capable, which in its early days caused a lot of disdain among enthusiasts. Now that road-only super SUVs have become the norm, the Cayenne's head start in development has meant it's one of the most consistent and advanced models on the market.

RELATED: Ranking The Fastest SUVs Ever Produced

Porsche Cayenne Turbo S E-Hybrid
Via Car and Driver

It's been a very strong seller for Porsche for more than a decade, and when a brand strikes a winning formula they're unlikely to change it. Hence, even today, Cayennes have next to no capabilities in the mud, simply because they don't need to.

3 Mercedes-Maybach GLS - $160,500

Mercedes-Maybach GLS
Via Mercedes-Benz

Thanks to its glitzy image and new-found popularity with celebrities and influencers, some would call the launch of the GLS last year a success. Sales-wise it is, although many reviewers and enthusiast owners have been bitterly disappointed with their new SUV.

Mercedes-Maybach GLS
Via Mercedes-Benz

It's built primarily to be a cash cow, to appeal to the wealthy while drawing on its symbolic status as the newest variant of the well-loved Maybach brand. It's not a car built with auto enthusiasts in mind, be that asphalt racing enthusiasts or off-road lovers.

2 Lamborghini Urus - $222,000

Lamborghini Urus
Via Motor Authority

It's big, it's brash, and Lamborghini can't make enough of them. In just two years, Lambo has produced over 10,000 Uruses, making it the best-selling raging bull ever.

Lamborghini Urus
Via Caricos

They're built to be fast and fancy, with as much Lambo spirit transferred into the car as was possible with a full-size SUV. On the asphalt it's actually a strangely capable beast, but off it? Not so much.

1 Rolls-Royce Cullinan Black Badge - $480,000

Rolls-Royce Cullinan Black Badge
Via Rolls-Royce Media

Just in case buyers thought the Rolls-Royce Cullinan was too common, the brand released an even more expensive, even more exclusive Black Badge version last year. Exact pricing hasn't been officially declared but it's been claimed the cost is a huge $480,000.

Rolls-Royce Cullinan Black Badge
Via Rolls-Royce Media

For that price drivers get every luxury and feature they can ever want, all wrapped up with the finest craftsmanship that Rolls have to offer. It's about as extravagant as SUVs get, but thanks to its clients being more likely to cruise round Beverly Hills than back roads, it has no off-road capability at all.

NEXT: 10 American SUVs We Stay Away From