WHOSE USED CAR IS DAVID CARUSO CRUISING IN?

Right after CBS renewed his hit crime drama “CSI: Miami,” high-end car buff DAVID CARUSO celebrated by splurging $200,000 on a Rolls-Royce Phantom that’s secondhand but immaculate, especially the leather seats buffed to a shine by the butt of sexy superstar CHRISTINA AGUILERA, who owned it for nearly two year.