Some cars age like fine wine. Others age like milk left on a radiator. These ten vehicles were praised when new - winning awards, earning rave reviews, and flying out of showrooms. Fast forward a few years, and owners found themselves trapped in a cycle of repairs, breakdowns, and MOT failures. Here's our countdown of cars that went from heroes to headaches.

Renault Mégane II (2002-2008)

The second-generation Mégane was a design revolution - all swooping curves and that controversial rear end. It won European Car of the Year in 2003 and sold in huge numbers. But electrical gremlins plagued these cars as they aged. Central locking failures, dashboard warning lights that illuminated randomly, and window regulators that gave up were common complaints. The electronic handbrake became notorious for failing, leaving cars stranded or rolling. Many ended up scrapped not because the engines died, but because the electrics became too expensive to chase.

BMW E60 5 Series (2003-2010)

BMW's controversial design direction under Chris Bangle divided opinion, but the E60 was packed with technology that impressed reviewers. iDrive was the future, they said. Unfortunately, that future included failing water pumps, VANOS issues, and electronics that developed faults faster than dealers could diagnose them. The run-flat tyres gave a harsh ride and cost a fortune to replace. Suspension components wore quickly, and by 100,000 miles many examples needed thousands spending to stay roadworthy. Depreciation was savage, but running costs made the 'bargain' used prices illusory.

Land Rover Freelander 1 (1997-2006)

The original Freelander democratised Land Rover ownership - suddenly the brand was accessible. Early reviews praised its car-like driving experience and genuine off-road ability. But the 1.8 K-Series engine was a ticking time bomb, with head gasket failure almost guaranteed. The viscous coupling in the transmission wore out, the sunroof drains blocked causing interior flooding, and rust attacked the tailgate with enthusiasm. Once prestigious, these became virtually worthless as the repair bills mounted up.

Alfa Romeo 147 (2000-2010)

Winner of European Car of the Year 2001, the 147 was proof Alfa could build a genuinely desirable hatchback. The styling was gorgeous, the Twin Spark engines were eager, and reviewers swooned. Then the problems started. Selespeed automated manual gearboxes became expensive nightmares. Suspension bushes wore rapidly. The MultiAir engines in later cars developed timing chain issues. Most damning was the rust - it attacked sills, arches, and subframes with an enthusiasm not seen since the 1970s. Beautiful cars became MOT failures by their tenth birthdays.

Citroën C4 Picasso (2006-2013)

The original C4 Picasso was a revelation in MPV design - that massive windscreen, the aircraft-style cockpit, and genuine practicality. Families loved them when new. But Citroën's complex electronics and hydraulic suspension systems proved unreliable as the cars aged. The semi-automatic EGS gearbox was particularly troublesome. Suspension pumps and spheres needed regular replacement at significant cost. By the time these cars reached ten years old, many were worth less than a single major repair bill.

Audi A2 (1999-2005)

The A2 was ahead of its time - aluminium construction, incredible fuel economy, and clever packaging. It won awards and developed a cult following. The problem? That aluminium construction made repairs astronomically expensive. A minor parking scrape that would cost £200 to fix on a steel car could run into thousands. Insurance write-offs became common for relatively minor damage. Finding technicians qualified to work on the aluminium structure was difficult outside dealers. The A2 proved that innovation sometimes comes with unintended consequences.

Vauxhall Vectra C (2002-2008)

The Vectra C was a massive improvement over its predecessor - better built, better equipped, and better to drive. Fleet managers loved them. But the electronic systems proved troublesome, particularly the IDS+ suspension on higher-spec models. The timing chain on the 2.2 direct injection engine stretched, causing expensive failures. Electronic handbrake faults mirrored those on other GM products. By 2015, perfectly functional Vectras were being scrapped simply because no one wanted them - the badge had become toxic and values had collapsed.

Peugeot 407 (2004-2011)

The 407 was Peugeot's return to form - striking design, quality interior, and genuinely engaging to drive. The coupé version was particularly handsome. But electrical problems plagued the range. Parking sensors failed, sat-nav screens went blank, and the electronic parking brake became a regular MOT failure item. The 2.0 HDi engine was reliable, but everything around it seemed determined to cause problems. Depreciation was brutal, and older examples became throwaway cars despite having fundamentally sound drivetrains.

Mini Hatch R56 (2006-2013)

The R56 Mini continued BMW's reinvention of the brand - stylish, fun, and selling in massive numbers. But the Prince engine developed by BMW and PSA became notorious for timing chain failures. The plastic thermostat housing cracked. Water pumps failed. Clutches wore prematurely. What looked like premium small car ownership turned into premium repair bills. The irony was that the older R53 with its supercharged engine proved far more reliable - the newer technology created newer problems.

Ford Galaxy Mk3 (2006-2015)

The third-generation Galaxy was the default choice for large families - spacious, well-equipped, and comfortable. But the dual-mass flywheel and clutch became an expensive weak point. The 2.0 TDCi engine suffered injector problems and DPF issues. Power tailgates failed. Sliding door mechanisms wore out. By the time these cars reached 100,000 miles, many needed significant investment to keep running. The sheer size of the car meant everything from tyres to brakes cost more than average, pushing running costs beyond what the used values could justify.

The lesson?

Complexity is the enemy of longevity. The cars that aged worst on this list share common themes - ambitious electronics, innovative but untested technology, and features that impressed reviewers but terrified mechanics. Sometimes the simplest car is the smartest choice. And when your formerly brilliant car becomes a nightmare, knowing when to walk away - and getting a fair scrap price - beats pouring more money into a lost cause.