My wife and I are landing at Heathrow this Wednesday at 10:30 at night. We'll sleep at EasyHotel and then have the morning until we have to be back at Heathrow at 1pm for a 4 pm flight. We will rent a car so we can do something with our morning. So which do you suggest seeing? Denham, Beaconsfield, or both (if both, will we have time for that?).