smart #3 採用咗更加低矮且流線嘅斜背設計，風阻系數低至 0.27cd。比起較為方正嘅 smart #1，smart #3 睇落更加有跑車風格，車長同軸距亦都稍為增加，令視覺效果更加修長。
The smart #3 adopts a lower, more aerodynamic coupe profile with a drag coefficient of just 0.27cd. Compared to the boxier smart #1, the smart #3 looks sportier and features a longer body and wheelbase for a more elongated silhouette.
