2009 BMW 335d vs 2009 Audi A4 3.2 Quattro


We've given high praise to the modern diesels we've tested (usually in Europe) over the last several years, as these engines are a world away from the diesels you might unfondly remember. Advancements in turbochargers, fuel injection and urea systems, along with the advent of ultra-low-sulfur diesel fuel, mean today's turbodiesels are far cleaner and quieter than previous oil burners. Yet they still deliver the technology's promise of low fuel consumption and generous torque. [Read more...]