See the latest BMW 5 Series discounts & finance deals from BuyaCar: br SUBSCRIBE for more great car videos: BMW 5 Series full review: br BMW 5 Series reviewbr With more than forty years of development under its belt, the 5 Series just gets better and better. This latest model is a technical tour de force, plus it delivers class leading refinement and comfort. Yet like all BMW models, it’s surprisingly efficient and great to drive. We’ll have to wait until we get the car in the UK for our definitive verdict, but on this showing the executive car class has a new king.br br More Auto Express videos br Car reviews playlist: Mercedes E63 AMG video review: Volvo V90 video review: br More on AutoExpress.co.