The boot is only 100 litres bigger than a 1 Series BUT it's the letter box size boot entry which limits its use. I can get 2 full size mountain bikes in the back of a 1 but I couldn't get any bikes in a 6.
Also, for the price and its weight, it's not that powerful - the x35i/d have more power and are lighter.
An Audi S7 has 150bhp more power and is the same RRP.
The more I research the 6 the more I'm going off it. No wonder they have massive discounts.
RRP is irrelevant really, the reality is that you will pay significantly more for an S7 than you will a 640.