I've fitted the following accessories to the wife's Crossfire, but the wind-deflector is available to fit the old shape Z4 and the illuminated gear knob, to fit the Z3; The gear knob came from Germany; http://www.innovativcar-tech.de/index.php And the wind deflector, from the States; http://www.kingpennindustries.com/default.aspx The gear knob was not listed initially with green illumination, but the company supplied one, to match the instrument illumination in the car on request and at no extra charge. It was supplied with a new leather gaiter and sufficient wiring for me to connect it to the wiring to the cigarette lighter. The quality is superb and it is much better than the original in terms of finish and feel. The wind deflector is also great quality and the look suits the car (imho). I fitted it in conjunction with one of these; http://www.amazon.co.uk/DIMMER-WIRELESS ... 378&sr=8-3 to easily control the light. No drilling was required and it is very effective at controlling the wind intrusion with the top down. They also make illuminated door sills for the Z4. Do bear in mind that you will probably end up paying import duty on the wind deflector. Again, apologies for bringing the Crossfire onto the Zed Forum, but the products can be ordered to suit some BM's and may be of interest.