635d Convertible (2007-2010)

Can you afford a 2007-2010 BMW 6 Series 635d Convertible in 2025?

# 2007-2010 BMW 635d Convertible The BMW 635d Convertible pairs open-air luxury with exceptional diesel performance, featuring a 3.0-liter twin-turbo inline-six producing 286 horsepower and massive torque. This rare combination delivered sports car acceleration with remarkable fuel economy—a unique proposition for the era. Enthusiasts praise its effortless long-distance cruising ability and surprising performance, with 0-60 mph in under six seconds. The diesel's torque makes highway overtaking effortless while returning impressive mpg figures. Critics noted the considerable weight and complexity. It's famous for being one of few diesel-powered luxury convertibles, though it was never sold in North America. Today, it suits buyers seeking a distinctive grand tourer for European road trips, appreciating refinement and efficiency over outright sportiness. Potential reliability concerns and maintenance costs require consideration given the aging twin-turbo diesel technology.

The 635d's twin-turbo diesel engine requires expensive maintenance including dual turbos, DPF cleaning/replacement, and injector issues. Convertible roof mechanisms commonly fail. Complex electronics cause frequent problems. Parts and specialist labor are costly. However, diesel reliability exceeds BMW's gasoline V8s from this era. Insurance is high due to performance/theft risk. US-unavailable complicates gray-market ownership.

Price Range

$18,000 - $32,000

Market price for 2025

Estimated Annual Costs

Insurance:$800

Maintenance:$3,200

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