Have come across a low mileage (<28k) 2018 650i M-Sport Ltd Gran Coupe with AWD at a Jaguar dealer. (Yes looking to trade in my Jaguar XKR coupe for something slightly more practical). Currently own e38 740i M-sport plus have owned several 5 series in the past so am familiar with BMW but nothing this new. Are there any issues I should be aware of? Twin turbos? Any advice would be appreciated.