Not as a new-car factory option, but they are availabel as a standard BMW accessory. They're in the (paper) "Z4 Accessories" brochure in dealerships - and also on the Z4 accessories page on bmw.co.uk.
Cheers Scott. I'll have to enquire about the price next time I'm at the dealers. The price list seems to suggest £78+fitting (not sure how difficult this would be to do myself - any drilling involved i wonder?) but only shows the pictures for an automatic transmission. The extra pedal in the manual could bump up the cost further.
