Buying a second car? Think twice. In a bid to decongest city roads, the Delhi government is thinking of raising sales tax on the second car bought by a family. The matter was discussed in Monday's cabinet meeting when the repeal of the Delhi Tax on Entry of Motor Vehicles into Local Areas Act, 1994, was taken up. "We realised something had to be done to bring down the rate at which cars are being bought," said Delhi chief minister Sheila Dikshit.