# 2011-2017 BMW 640d Coupe The BMW 640d Coupe represents the 6 Series' diesel-powered grand tourer, blending elegant styling with impressive efficiency. Its 3.0-liter turbocharged inline-six diesel produces around 313 hp and massive torque, enabling effortless highway cruising and surprising acceleration for a large coupe. Reviewers praise its long-distance comfort, refinement, and fuel economy that petrol equivalents can't match—often exceeding 40 mpg on motorways. The sleek, low-slung design and premium cabin reflect BMW's luxury aspirations, though some criticize the firm ride and limited rear-seat space. It's famous for offering V8-like performance with diesel frugality, making it popular in Europe where diesel pricing favored running costs. **Best suited for:** Enthusiasts seeking a stylish, efficient grand tourer for long commutes or continental trips. Ideal for those prioritizing fuel economy without sacrificing performance, though potential buyers should verify diesel viability in their local market.
The BMW 640d Coupe features expensive maintenance typical of luxury vehicles, including costly brake replacements and complex electronics repairs. The diesel engine requires particular attention to emission system components (DPF, EGR). Insurance premiums run high due to luxury status and repair costs. However, the diesel powertrain proves relatively reliable mechanically compared to BMW's gasoline counterparts.
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