At Sumburgh in the 70s, the airfield manager was also SATCO so his car (a Vauxhall Viva Coupe 2200) would have been parked outside the tower which was on a hill, at least it was in 1972 when I was there for a month as part of my ATCO Cadet training. It was rare however, for Les Isaacs to bring his car to the airfield; normally he would use the 'company' Ford Anglia estate.
On the movement area, there was little in the way of slopes, the only one I can think of was near 15 threshold.
The only incident I heard of involving a '748 at Sumburgh was the 'fatal' on final for 09.