Expanding the variant lineup of the X1 SUV, BMW has launched its new sDrive18i M Sport variant in India at Rs 48.90 lakh (ex-showroom), making it Rs 3 lakh costlier than the sDrive 18i xLine variant. BMW X1Ex-Showroom PricesDrive 18i xLineRs 45.90 lakhsDrive 18i M SportRs 48.90 lakhsDrive 18d M SportRs 50.90 lakhBMW X1…