2014 BMW 435i Coupe with M Performance parts

Greetings from the famous Circuito do Estoril racetrack in Portugal. We're here to put the 2014 BMW 4 Series coupe through its paces, and we'll have the chance to sample the updated 2014 BMW M5 with its new Competition Pack, as well. But before going out for some hot laps, we took a few minutes to check out this 435i Coupe that's been fitted with a full suite of goodies from the BMW M Performance parts catalog.

Starting with the exterior, carbon fiber bits are the most noticeable additions, with the lightweight material added in the form of a massive front splitter, mirror caps and a rear spoiler. Other visual changes include lightweight 20-inch wheels, a blacked-out grille, and unique M Performance side stripes. No, that's not a shadow you see under the 435i's strong side character line – that's a stripe. Yes, we're serious.

Inside (we couldn't get photos of the interior, sorry!), BMW has added its sport steering wheel with race display, unique M floormats, steel pedals, and a whole mess of carbon fiber and Alcantara trim.

But the M catalog isn't just about added flair. Legitimate performance parts can be had, and for starters, this 435i is fitted with a power kit that increases engine output from 300 horsepower and 295 pound-feet of torque to 334 and 332, respectively. Building upon that, there's a limited-slip differential, performance suspension, upgraded brakes with red calipers and a rear apron diffuser finished in carbon.

BMW hasn't announced official pricing for the 4 Series goodies as of this writing, but we should have a clearer idea of how much coin each option will warrant closer to the kit's debut at the Frankfurt Motor Show this September. Until then, have a glance through our gallery of live photos to take it all in for yourself.