For those Maserati Quattroporte owners seeking a bit more flair from the Italian sports sedan, German tuning house MR Car Design has prepared a mild performance package. Starting with a pre-facelift model, MR Car Design’s engineers tweak the 4.2-litre V8 engine’s software and add a custom exhaust system lifting output by 30HP and 29Nm for a total of 430-horses and 480Nm (352 lb-ft) of peak torque. Read more »