BMW Z4 2012 Convertible roadsters are a top choice among sports cars for long trips, as they have great ride quality along with excellent handling and poise. Seating is very comfortable, and BMW hasn't forgotten about details such as storage bins. The Z4 sDrive35i models, when equipped with the DCT gearbox, offer scorching performance without sacrificing smoothness or drivability. Among roadsters, the Z4 remains one of the most practical because of its all-season, well-insulated retractable hardtop and practical trunk space.