Heart of Scotland services, commonly referred to as Harthill services, is a motorway service station on the M8 motorway between junctions 4a & 5, at Harthill, in North Lanarkshire, Scotland. It is owned by Transport Scotland and is leased to BP. It used to be leased to RoadChef. The Service Station is the only one on the M8 Motorway, and can be busy, especially at peak times. When opened in 1978 it was Scotland's first service station and features the United Kingdom's only long distance bus stop in a service station..