For the exterior, Hartge has created a new front apron that covers the air inlets, carbon fiber mirror caps, a discreet boot lid spoiler, a wind deflector, pin stripes and a four-piece exhaust system.
Customers can also give the hardtop roadster an even sportier stance with the addition of Hartge's alloy wheels that are available in numerous designs in sizes 18- to 20-inches, and a suspension lowering kit.
A set of aluminum pedals, a new instrument cluster and specific floor mats are some of the options offered for the interior.
Those that are interested in juicing up the Z4's powerplants will have to wait until next year when the company is expected to reveal its engine kit program.
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