hello I have a few questions! what are the differences between the one with 163ps and the one with 170 ps? how is the consumption of the two cars? or rather how much do you consume with these cars? and how big is the consumption difference to the cooper s jcw? I find the compressor sound simply awesome! but I drive about 100 km on the day! or should I rather buy the new one with 175 turbo ps? because it consumes much less??