Starting a BMW double bill, the old-shape 5-Series is sure to get champagne corks popping at blue propeller showrooms across the country. Despite being out of production for four years, it can still mix it with the very best new cars. Three top 10 finishes show just how happy you are with your used BMWs, with glowing reviews in the build quality chart proving it was put together with real precision. The only slight concern is its reliability position, which has fallen from 38th last year to 50th.