在便利性方面，敞篷车里无能出宝马4系之右者，它的敞篷在20秒内即可自动收放到位。代价是它的重量和成本，以及为了储存折叠硬顶而妥协的古怪后部比例。新宝马4系是一款热销产品，它的敞篷版应该也会同样成功。4缸发动机版的起价为49,675美元，花上55,825美元，你就能买到搭载了宝马无与伦比的直列六缸发动机的435i。

    You can't beat the convenience of a metal-roofed convertible like the 4-series, whose top goes up or down in 20 seconds and sets itself in position automatically. The tradeoff is weight, cost, and the odd rear-end proportions that come with having to store all that folded-up metal. The new 4-series coupe is a hit, and the convertible should be equally successful. Prices start at $49,675 for the four-cylinder model and $55,825 for the 435i that is powered by BMW's incomparable inline six.