After showing us its initial offerings for the new BMW Z4 that were limited to a few alloy wheel options, a dual-pipe exhaust system and a new speedometer, Hartge has taken one step further by releasing a new set of upgrades for the hardtop roadster.

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.