Once you have ascertained that the car is solid, I would thoroughly reccommend a good remap. That 6cylinder engine is ripe for a lovely smooth upgrade and the extra power and smoothness really helps turn the car from a very big and heavy car, into something which feels much lighter and more nimble, yet retains its luxury and comfortable abilities. Just be sure to get a good one, from a very reliable dealer!
hi yes, ive been told this is wise, seen ecopower do it for 185 and its a proper remap rather than a basic. be nice to get more power out of it and in turn better fuel apperantly. thanks for confirming, looks like you have same car in photo