Used BMW 6-Series M6 Convertible (2012 - 2018) Costs Review by Tim Bowdler on 20 Aug 2013 Last Updated: 27 Aug 2015 4 The BMW M6 Convertible represents something of a problem for true-blue driving enthusiasts. Awesomely fast, great handling, a fantastic noise and uncompromising looks but… it’s still a convertible. Summary Driving & Performance Equipment Comfort Costs Safety & Reliability Buying & Selling Also Consider Facts & Figures Gallery Test drive with BMW or request a brochure 2 out of 5 Running costs BMW has gone to great lengths to cut emissions and fuel consumption. When you consider that the previous model’s claimed average fuel consumption was around 19mpg, this version’s official average of 27.4mpg is pretty impressive. In real-world driving though, you’ll be lucky to get 20mpg. BMW M6 Convertible running costs won’t be cheap right across the board: BMW’s servicing costs among the highest and it’ll be expensive to maintain as well.Tyres will be pricey and the high CO2 emissions make it expensive to tax. Summary Running Costs Servicing period According to the on-board computer. A transferable M6 service package covering servicing for five years is available for around £1,000. Warranty Three years/unlimited mileage Road tax (12 months) £475.00 - £565.00 Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered after March 1st 2001 VED or road tax is based on the car's CO2 emissions. For cars registered before March 1st 2001 it is based on engine size. Full running costs data 2.5 out of 5 Green credentials < 100A 101 - 110B 111 - 120C 121 - 130D 131 - 140E 141 - 150F 151 - 165G 166 - 175H 176 - 185I 186 - 200J 201 - 225K 226 - 255L239 256+M CO2 emission figure (g/km) Fuel economy rating The arrows indicate the best and worst CO2 bands for this model. Emissions summary You’ll not be doing icebergs in the Arctic Circle much good if you buy one of these because official BMW M6 Convertible emissions make unpleasant reading. The previous M6 droptop’s CO2 emissions were a planet-melting 342g/km and this car’s 232g/km do represent a massive improvement. Still, this is not a car to take to the Greenpeace annual get-together. Find the exact engine and CO2 Back to: Comfort Continue to: Safety & Reliability Car Valuations Find used car prices with Parkers accurate car valuations. Find out more BMW 6-Series cars for sale We have 4 models like this for sale. Find BMW 6-Series cars for sale