All convertibles in the BMW line cost more than their hardtop versions. Almost $6k more for a 1series, $8k more for 3series, $5k more for 6series, $8k more for M3s and M6 verts. The Z4 base model starts at $47k, so a hardtop model might start at $39k. Not overpriced at all. I've had 3series, M3, M5, 535 and 740, all fine touring cars but the Z4 is BMWs only sports car. When they offer it as a hardtop with twin turbo V8, carbon brakes and M suspension it will become their only exotic car offering. Now THAT will be facelift we'll all get excited about.