European performance cars can be like roller coasters. They launch with tremendous horsepower and the latest technology, only to experience plunging depreciation as ownership continues. While that’s not good if you bought a Mercedes AMG GT or BMW M4 when new, it can open tremendous bargains on the used car market.

Backspeed Boys, in partnership with Endurance, call out a handful of German and Italian performance machines. Many originally stickered for $70,000–$130,000 or more, but can now be found in the $25,000–$50,000 range. Best of all, these cutting-edge machines from a decade ago still feel modern today.

Yet, one thing hasn’t changed for the better: repair costs. The purchase price may have collapsed, but visiting the shop isn’t likely to get cheaper as these performance cars age. Turbocharged engines, adaptive suspensions, dual-clutch gearboxes, and complex electronics still require specialized labor and premium parts.

We’ll explain what made five European performance bargains special when new and cover the repair risks that owners may face. You’ll also learn how an extended car warranty (also known as an auto protection plan or vehicle service contract) can limit financial surprises at the shop.

The List at a Glance

Check out the six models highlighted by the Backspeed Boys, as well as their common trouble spots and aftermarket coverage eligibility:

*The vehicles in this article are featured for informational purposes and do not represent a guarantee of coverage. Eligibility for an Endurance vehicle service contract varies based on vehicle make, model, mileage, and condition. Contact an Endurance representative or request a free quote to confirm available options for your vehicle.

BMW M4 (2015–2018, F82)

The launch of the F82-generation BMW M4 coincided with fundamental changes at BMW’s M group. The automaker’s performance division ditched naturally aspirated V8s in favor of smaller displacement inline-six-cylinder engines with turbochargers. The V8-powered E92 M3 became part of history. In its place came the S55, a twin-turbocharged 3.0-liter inline-six that delivered 425 horsepower at launch and later climbed to 444 horsepower in Competition trim.

When equipped with a dual-clutch automatic transmission, the M4 can reach 60 mph from a standstill in 4.1 seconds. It’s a vehicle that the Backspeed Boys describe as “basically like a track car that you could drive on the street,” helped by crisp chassis dynamics.

But as they say, with power comes responsibility. In this case, owners could be on the hook for expensive repairs. One of the most significant vulnerabilities is crank hub failure inside the S55. In these instances, slippage can cause the engine timing to go out of sync, potentially leading to piston-to-valve contact and catastrophic engine failure. A crank hub repair (without any other engine damage) or upgrade can run $3,000–$5,000.

The factory plastic charge pipes are another known weak point. These plastic pipes carry pressurized air from the turbochargers into the engine and can crack over time. Aftermarket performance tuning only accelerates the problem, which can cost $600–$1,000 to correct.

The M4 is dependent on the VANOS variable valve timing system, which has a history of problematic solenoids. It’s another service to be watchful for, along with a $905–$1,055 repair bill.

Extended warranty protection is available for qualifying 2017 models through an Endurance exclusionary plan, which is most similar to a new car warranty. Aftermarket modifications can make a vehicle ineligible for coverage.

Audi RS5 (2014–2017, B8.5)

The B8.5 Audi RS5 was evidence, at least a decade ago, that naturally aspirated high-revving V8 performance cars were alive and well.

Its 4.2-liter V8 produces 450 horsepower and can spin up to 8,250 RPM. Today’s turbocharged engines don’t produce power the same way or create the same raw sound. The Backspeed Boys point out that “they don’t make them like that anymore,” which certainly applies to this RS5.

On the other hand, this Audi is quite sophisticated with Quattro all-wheel drive and a seven-speed dual-clutch automatic. This setup, along with V8 power, enables the RS5 to achieve almost supercar-level acceleration: 0-to-60 mph in 3.8 seconds.

Yet all of this sophisticated hardware can become expensive to repair as the vehicle ages. The greatest concern is carbon buildup on the intake valves due to the engine’s direct injection setup. In more severe cases, walnut blasting, at a cost of $1,200–$1,800, may be required. Owners may also have to deal with a leaky thermostat housing, which usually means replacing the entire thermostat. That service tab averages $1,017–$1,197.

However, those repairs will seem minor if the S-tronic transmission’s mechatronic unit fails. This component manages shifting and clutch operation. When it goes bad, a replacement can cost $4,000–$6,000, with hardware accounting for most of the total.

Alfa Romeo Giulia Quadrifoglio (2017)

The German monopoly on performance cars gets broken up by the Alfa Romeo Giulia Quadrifoglio. While the Giulia certainly looks different from other Teutonic sport sedans, the engine truly sets it apart. Alfa Romeo installed a Ferrari-derived 2.9-liter twin-turbocharged V6 producing 505 horsepower and capable of launching the sedan to 60 mph in around 3.8 seconds.

While the BMW M3 and Mercedes-AMG C63 may be duking it out for supremacy, in comes this vehicle that the Backspeed Boys jokingly describe as “basically like a little mini Ferrari.” What also separates the Quadrifoglio (even from the standard Giulia sedan) is an advanced active suspension and torque-vectoring differentials. Other upgrades include a carbon-fiber driveshaft and carbon-ceramic brakes.

2017 marked the Giulia’s U.S. debut. First-year gremlins can happen with all-new models, and the Giulia doesn’t appear to have escaped this curse. A review of NHTSA records shows dozens of complaints with a common theme: electrical glitches. These issues can be difficult and expensive to diagnose. A faulty fuel pump (repair cost: $712–$786) is another often-reported issue, as are sensor problems.

The overall challenge with the Giulia is not a single major trouble area, but rather numerous less severe problems. Lenny from the Backspeed Boys points out that the Giulia Quadrifoglio can be complex to work on. While changing the serpentine belt might take two hours on other cars, it’s a nine-hour job with this Alfa.

Endurance coverage is available for qualifying 2017 models.

Porsche Cayman S (2015–2017, 981)

There’s something to be said for simplicity, which is the underlying element of the 981-generation Porsche Cayman, and the S variant in particular. It’s a formula that comprises near-perfect weight distribution through lightweight construction, a naturally aspirated flat-six, rear-wheel drive, and a mid-engine layout.

The very nature of this Cayman prioritizes precision over horsepower, which is why the Backspeed Boys praise its handling and balance over outright straight-line speed. However, when the car is equipped with the 3.4-liter flat-six and Porsche’s seven-speed PDK dual-clutch transmission, the Cayman still delivers respectable performance. It can hit 60 mph in the low four-second range.

While the first-generation (987) Cayman is notorious for intermediate shaft (IMS) bearing failures, the 981 has escaped this issue as Porsche redesigned the engine for the 2009 model year.

Rear main seal (RMS) leaks are another story and arguably the greatest risk to owning a 2015–2017 Cayman S. At least this problem won’t grenade the engine. However, the repair involves dropping the transmission, which is why it can take 10–12 hours of labor. Costs can run $1,000–$2,000 to replace an $80 part.

Bore scoring has been reported on some 9A1 engines, although it is considerably less common than on earlier Porsche flat-six engines. This problem can cause excessive oil consumption, engine knocking, and reduced compression. The repair can require a complete engine teardown costing $15,000 or more.

Endurance coverage is available for qualifying 2015–2017 Cayman S models.

Mercedes-AMG GT (2016–2018, C190)

The Mercedes-AMG GT checks many of the same boxes as the other cars on the list: high performance, European engineering, and sophisticated technology. Yet, it feels different. The Backspeed Boys capture this essence by calling the AMG GT a modern interpretation of the legendary Mercedes 300 SL. The long hood, compact cabin, rear-wheel drive, and a hand-built engine reinforce this sentiment.

At the heart of this beast is AMG’s hand-assembled 4.0-liter twin-turbocharged V8. Depending on trim level, output ranges from 456 horsepower in the base GT to more than 500 horsepower in the GT S. Stomping the accelerator enables the GT to reach 60 mph in as few as 3.5 seconds.

What can add up equally quickly are the repair bills. Adaptive damper failures are among the more expensive potential repairs. Just replacing a shock or strut can be stunningly expensive. Estimates for a suspension shock or strut replacement range from $3,650 to $3,890. Even something as basic as installing a suspension ride height sensor costs $830 to $860.

In addition, the AMG GT’s dry-sump oiling system requires regular attention. The pump and lines help lubricate the engine during active driving, but they are susceptible to failure over time. Replacing a single line can cost $1,600–$1,800. Tires, brakes, and routine maintenance are also expensive for the AMG GT.

Qualifying 2017 models are eligible for Endurance exclusionary coverage.

The Common Thread: European Depreciation Doesn’t Reduce European Repair Bills

While European performance cars get cheaper to buy over time, they don’t become less expensive to maintain. That’s something that first-time buyers can underestimate. Replacement parts, labor rates, and maintenance still apply, regardless of whether the car is a year or a decade old.

Buying a BMW M4 for the cost of a new Toyota Camry still means repairs for the turbocharged inline-six come with a BMW price tag. Likewise, depreciation has made a Porsche Cayman S attainable, but work on the brakes, suspension, and transmission can still be expensive. The same applies to Audi’s dual-clutch systems, Alfa Romeo electronics, and AMG’s unique equipment requirements.

Yet, an extended warranty or vehicle service contract may help make unexpected repair costs more predictable. Coverage options vary by model year, mileage, and condition. And not all vehicles will qualify.

The Right Coverage at the Right Time

There has never been a better time to buy fast European cars for surprisingly reasonable money. Serious performance and advanced features can be appealing, especially at a lower price. But these are anything but cheap cars. It’s quite the contrary when you consider potential repair costs.

An Endurance Warranty plan can help cover eligible breakdown-related repair costs after your factory warranty expires. Importantly, this protection locks in costs today, regardless of rising labor rates or replacement part prices. We offer affordable monthly rates, with no increase after a claim.

All Endurance plans include 24/7 roadside assistance with towing, rental car reimbursement, and travel interruption protection. Benefits also include a 30-day money-back guarantee and flexible payment options. Endurance customers can also select any licensed facility for covered repairs, including dealer service departments and specialty garages.

Explore your coverage options by requesting a FREE quote or visiting the Endurance online store. An Endurance team member can review programs and answer questions. Call (800) 253-8203.

Learn about car repairs, vehicle maintenance, warranty insights, and more by reading the Endurance Blog.

Visit the Endurance YouTube Channel to watch the entire Backspeed Boys video series, including the Top 6 Sports Cars Under $25K (That Aren’t Old) and Best Depreciated Luxury Sedans That Are Faster Than You Think.