List prices suggest that, allowing for a few well-chosen extras, you'll probably be paying somewhere in the £37,000 to £50,000 bracket for your Z4. Almost all BMW's business here is done with the four cylinder 2.0-litre petrol engine that powers the sDrive20i and 30i variants, leading to an average Z4 purchase price in the £40,000 to £45,000 bracket. There's an £8,500 step up from the sDrive 30i to the M40i, so you've really got to want that flagship model's six cylinder engine.
The list of options includes Active Cruise Control with Stop & Go function, plus there are various Driving Assistant systems, as well as a BMW's 'Parking Assistant' package, including a 'Reversing Assistant' feature that can reverse the car back automatically along the path just taken. This Z4 is also the first roadster to be made available (as an option) with a Head-Up Display. Safety can be given a further boost by opting for the Adaptive LED headlights. And with the optional Comfort or Comfort Plus packages fitted, the soft-top can be operated using the car key. The ambient lighting, fitted as standard, brings a particularly atmospheric mood to the cabin. LED fibre-optic guides light up the instrument panel's accent strips on either side of the steering wheel and provide indirect illumination of the centre console's edging, accentuating the areas of the cockpit of most importance for focused driving.