The BMW 5 Series 550i Touring is a large, premium estate car, offering more space and practicality than a saloon while sitting above mainstream family estates. This 2003-07 M Sport version pairs a powerful 4.8-litre V8 with an automatic-style SMG gearbox, giving it a distinctive, performance-focused character. mycarcheck.com has just one recorded check for this exact model, so its figures are a guide rather than a broad market picture. That record shows an average private-sale value of £1,100, mileage of 143,000, around 9,000 miles a year and two previous keepers. Families and travellers appreciate the space; enthusiasts may enjoy its acceleration and sporty feel. Expect higher fuel and upkeep costs than in an ordinary estate. Against the Audi A6 Avant and Mercedes-Benz E-Class, this BMW blends practicality with an involving drive. The BMW 5 Series (2003-07) 550i 5dr Touring 4.8 M Sport SMG Auto suits buyers prioritising character over economy.