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Parkers overall rating: 4 out of 5 4.0


  • Comfortable cruiser
  • Handling PerformanceFolding roof mechanism


  • Roof limits boot space
  • Running costsMore expensive than coupe


Meet the BMW 4 Series Cabriolet, a drop-top version of the well-received 4 Series Coupe. It’s a replacement for the outgoing BMW 3 Series Convertible and it goes on sale from March 2014.

Like the car it replaces, it features a folding metal roof which when raised makes the car appear like a fixed-head coupe. The three-piece roof takes 20 seconds to rise or lower and can be operated at speeds of up to 8mph.

As with many convertibles of this type, boot space is limited with the roof down but it’s still possible to carry a few small bags. With the roof up, the boot is 20 litres bigger than the old 3 Series Convertible.

One diesel and two petrol engines

From launch there will be three engines. The two petrols will be the 3.0-litre 435i with 302bhp and the 2.0-litre 428i with 242bhp. Both have top speeds limited to 155mph and are available with either a six-speed manual or eight-speed automatic transmission.

BMW says the 435i averages 34.9mpg and emits 190g/km of CO2 in manual form, and 37.7mpg and 176g/km with the auto ’box.

Likewise the manual 428i will average a claimed 41.5mpg and 159g/km CO2, and the automatic 42.8mpg and 154g/km.

The sole diesel from launch is the 420d - a 2.0-litre diesel with 181bhp. It’ll average a claimed 55.4mpg with a manual gearbox and emit 133g/km of CO2. It too is available with the automatic transmission, the figures for which are 58.9mpg and 127g/km.

Five trim levels

Equipment levels follow the familiar trim grade system from the 3 Series and 4 Series Coupe range. There are five choices: SE, Sport, Luxury, Modern and M Sport.

Standard kit includes front and rear parking sensors, heated electric front seats, DAB radio and a 6.5-inch colour screen for the multimedia system.

M Sport models come with bigger brakes and adaptive suspension, which continually adjusts itself according to road surface and vehicle speed for optimum comfort and stability.

Notable options include an ‘Air Collar’ system, which ducts warm air around the necks of the driver and front passenger to keep them warm, and a wind deflector mounted above the back seats. A useful through-load access hatch to the boot in the rear seats is also available.

To find out more about the successor to the popular 3 Series Convertible, read on for the full Parkers BMW 4 Series Convertible review.

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