Another safety feature now widely used on BMW cars is Run-flat tyres. Since their introduction, thousands of customers have realised the benefits of these unique tyres. In 2005 alone, it is estimated that approximately 3,000 drivers of Run-flat tyre-equipped BMWs and MINIs in the UK who suffered a puncture were able to get home, or to a dealer, without having to perform a potentially dangerous wheel-change. 
 
The new Z4 3.0si Coupe is equipped with Run-flat tyres that, in the event of a slow puncture or a high-speed blow-out, can continue to be driven for 150 miles at 50mph, while still retaining the benefits of the DSC+ traction control system and ABS brakes. This not only minimises the possibility of loss of control of the car but also reduces weight and removes the inconvenience and danger associated with changing a wheel at the side of the road. 

The removal of the spare wheel and associated jacks and tools eliminates approximately 20 kilograms from the rear of the car, lowering the centre of gravity and improving still further the handling characteristics.

During the development of the Z4 M Coupe, engineers from BMW M evaluated the Run-flat and conventional tyres around the infamous Nürburgring. They concluded that the high levels of performance from the M car necessitated the fitment of 'conventional' tyres as standard on all Z4 M Coupes. However, to maintain the highest safety levels, the wheels of the Z4 M Coupe are designed to prevent the tyre coming off the wheel, even in the event of a high-speed blow out. Punctures can be sealed using the M Mobility System and, without a spare wheel, the same weight benefit as the Run-flat tyre solution is achieved.


Enthusiasts' market

The recent launch of the new Z4 Roadster marked the first time that Z4 had been offered with Sport models. Having proved successful in other BMW model series - 65 per cent of six-cylinder 3 Series and up to 95 per cent of all X5 vehicles being bought as Sport models - the take up of Z4 3.0si Coupe Sport is expected to be approximately 80 per cent. In addition to the SE specification, Sport models feature:

- 18-inch M double spoke or optional 18-inch composite alloy wheels
- M Sports seats covered in Dakota leather upholstery
- Anthracite headlining
- Three-spoke M leather steering wheel
- M Sports suspension

Customers purchasing the Z4 3.0si Coupe can also benefit from BMW's Service Inclusive pre-paid servicing packages. Owners can select from a three-year / 36,000 miles or five-year / 60,000 mile Service package that covers the cost of all service items, from Pounds Sterling 430. 'Service and Maintenance' coverage can also be purchased for the same periods. In addition to the Service package, this covers costs associated with replacement brake pads, brake discs, brake sensors, brake fluid, clutch assembly (if worn) and wiper blade rubbers. This level of cover starts at Pounds Sterling 720.
 

A niche market for exclusive customers

The new BMW Z4 is sure to have a wide emotional appeal for both sports car and BMW fans. But with only two seats, the car is unlikely to be on the shopping list of the majority of car buyers. It is, quite naturally, a niche model and will be an exclusive sight on British roads. As a result, BMW UK expects to sell approximately 1,000 Z4 Coupes in 2006, of which approximately 200 are expected to be the high-performance M variant.

The typical buyer of the Z4 3.0si and M Coupes will be male, married and aged between 35 and 45 years. Irrespective of these expectations, the owner of a Z4 Coupe will be a driving enthusiast who enjoys the thrill of driving exclusive, high-performance sports cars.

"Most cars in the sporting coupe sector try to be a jack of all trades…..and end up being the master of none,' said Jim O'Donnell, Managing Director of BMW (UK) Ltd. "The Z4 Coupe is different - it is a focused sports car aimed fairly and squarely at drivers who love driving."

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