Discounts Lead To Marginal Increase In Volumes; Companies Nervously Await Budget. NewDelhi:Car sales entered the new year on a cautious note as high interest rates and petrol prices continued to suppress demand and incremental volumes flowed in from new-year discounts. Market leader Maruti Suzuki, that had witnessed a decline in year-on-year volumes over the last few months, managed to enter 2012 on a positive note, albeit near flat. The company’s January sales grew 0.6% at 1.01 lakh units.