In an increasingly tough market, small volume foreign car-makers trying to boost market share face twin challenges of trying to grow sales while grappling with an auto downturn in an environment where regulation-related costs are eating into margins. Case in point: Honda Cars India saw its volumes decline by 30 per cent for October. They weren't alone. Toyota Kirloskar Motors also saw volumes contract, albeit by a smaller 5 per cent. For the Volkswagen brand, which is led by Skoda Auto Volkswagen India, the results have been better with a 20 per cent jump in the last month's sales. However,