What Changed

New engines force an updated nomenclature. Four cylinder models are now 430i (formerly 428i), whereas six-cylinder engines become 440i (formerly 435i).

Comparison to Prior Model

2017 BMW 4-Series convertible 2016 BMW 4-Series convertible
2017 BMW 4-Series convertible 2016 BMW 4-Series convertible
Price Range ($) $50,300 - $77,600 $50,000 - $73,900
Length (in) 182.6 182.6
Wheelbase (in) 110.6 110.6
Width (in) 71.9 71.9
Height (in) 54.5 54.5
Track (in) 61.0 60.8
Exterior Volume (cu. ft.) 351.9 350.2
Curb Weight (lbs.) 4050-4330 3963.9-4270
Legroom Total (in.) 75.3 75.3
Passenger Volume (cu. ft.) 90.0 90.0
Cargo Volume (cu. ft.) 13 13
Driven Wheels
  • RWD
  • AWD
  • RWD
  • AWD
Engines
  • 2.0l I4 T (248-bhp)
  • 3.0l I6 T (320-bhp)
  • 3.0l I6 T (425-bhp)
  • 2.0l I4 T (241-bhp)
  • 3.0l I6 T (302-bhp)
  • 3.0l I6 T (425-bhp)
Transmissions A8, M6, SM7 A8, M6, SM7
City MPG 17-23 17-23
Highway MPG 24-34 24-34
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