Four luxury cars that cost $55,000 new now sell used for under $30,000 after losing half their value

These four luxury cars depreciate pretty rapidly, and it doesn’t look like the trend is stopping.

All four cost well over $55,000 when new, and they now go for $30,000 just a couple of years later.

There are several reasons for this.

Including something that wouldn’t have been a problem years ago.

These cars are the four ‘culprits’

There are many flagship cars you could include on the list but CarBuzz narrowed it down to four: Mercedes-Benz E-Class, Kia K900, Cadillac CT6, and Volvo S90.

All four are flagship models, even though, when you look at these brands, some of them may not be considered luxury cars.

When new, all four had an MSRP well north of $50,000 to $60,000, which quickly dropped below $30,000—often within just two or three years because they depreciate so quickly.

Why we’re looking at these four

High-end luxury flagships – mostly full-size executive sedans and premium vehicles from brands like BMW, Audi, Mercedes-Benz, and Jaguar – generally suffer from some of the steepest depreciation rates in the entire automotive industry.

Vehicles that originally commanded $80,000 to well over $100,000 when brand-new frequently plummet into the sub-$30,000 bracket after a few years.

When you look at – let’s call it – a ‘depreciation-to-mileage-to-year ratio’, the situation is pretty bad.

Other vehicles depreciate even more, but that is generally down to a combination of high mileage and time.

But with these four, it happens very quickly and regardless of how many miles they’ve covered.

Cadillac CT6

Base powertrain: 2.0-liter turbocharged inline-four (237-265 horsepower)

Original MSRP: $50,495 (2019) to $58,995 (2020)

Current average used value: $18,000-$26,000 (for standard 2017–2020 Luxury/Premium Luxury models)

Kia K9/K900

Base powertrain: 3.3-liter twin-turbocharged V6 (365hp) paired with an 8-speed automatic transmission and standard AWD.

Original MSRP: $59,900 (2019–2020 final generation)

Current average used value: $20,000-$28,000 (for 2019–2020 models)

Volvo S90

Base powertrain: 2.0-liter turbocharged inline-four (T5/B5 mild-hybrid, producing 247-250hp) with an 8-speed automatic transmission.

Original MSRP: $50,550 (2020) to $58,300 (2024/2025)

Current average used value: $21,000-$27,000 (for typical 2018–2021 pre-owned models)

Mercedes-Benz E-Class

Base powertrain: 2.0-liter turbocharged inline-four (255hp) with a 9-speed automatic transmission

Original MSRP (Base Trim when new): $55,045 (2020 base E 350)

Current average used value: $22,000-$28,000 (for 2018–2020 E 300/E 350 sedans)

Key factors driving the drop

There are three main factors: high maintenance and repair costs, rapid technological obsolescence, and first-owner dynamics.

Out-of-warranty luxury cars carry notoriously high maintenance bills.

Complex electronics, multi-zone climate control systems, specialized air suspensions, and tightly packed engine bays mean that routine or emergency repairs can quickly add up.

Also, flagships are rolling showcases for cutting-edge technology.

But that tech stays ‘cutting-edge’ for a year or two before becoming a little ‘passé’.

Within a few years, infotainment interfaces, driver-assistance suites, and connectivity features can look or feel dated compared to newer mainstream models, accelerating depreciation.

This wouldn’t have been a problem not long ago, but it is now.

Whether we like it or not, cars are software-driven these days.

Last but not least, the initial buyers of these flagship vehicles often prefer to lease or trade them in as soon as the factory warranty expires.

This floods the used market with a high supply of pre-owned luxury cars, driving down resale values.

The silver lining

The upside is easy to spot: if you’re in the market for a solid, comfortable, fast, high-end sedan, these four are compelling choices.

The first owner has already absorbed the brunt of the depreciation, meaning you can get a powerful multi-cylinder luxury vehicle for a fraction of its original MSRP, and it’ll likely won’t depreciate much further.

If you’re lucky, you may even find one with a V8.