The 2010 Porsche Cayenne SUV is likely to get a sleeker shape when it arrives for the 2010 model year. The Cayenne has been an amazing success for Porsche, but the automaker is planning drastic changes as the market continues to shift away from SUVs. The new SUV is expected to feature a less upright windshield, a lower roofline, blacked-out B- and C-pillars, and lighter-looking, sloping D-pillars. Overall, the vehicle is likely to look more like an Infiniti???s FX models than traditional SUVs.