The new range of S-Class cars (W126) was launched in 1979 with the first UK cars arriving in autumn 1980. The new wedge shape with less weight helped with fuel economy whilst retaining the comfort. The wheelbase was increased and the body to boot size relationship changed. Automatic was standard on all V8 engined cars. Within a year the (Energy Concept÷ engines were introduced, and in 1985 all the engines were revised with a single-cam, 3-litre and a 4.2 V8. A 5-litre was re-introduced in late 1987. This is a book of contemporary road and comparison tests, specification and technical data, new model introductions, driver's reports, buying second hand, long term tests, touring. Models covered include:- 280, 300, 380, 420, 500, 560, SD, SE, SEL, SEC, AMG and Koenig.