Equally discreet on the road and in terms of sales, this Swedish luxury sedan is offered with two engine options: a 3.2L or a 3.0L inline-6. The first delivers 240 hp while the second, which features a turbocharger, offers 300 hp. AWD is only available on the T6 model with the 3.0L engine. Both versions come with a 6-speed automatic transmission.