Cars Q&A

I recently went to maruthi show room in trichy as well as Chennai,i went to enquiry abt the swift diesel but the marketing guy are promoting for RITZ Diesel,i have a doubt swift is most fast moving vehicle in maruthi,but ritz i havent seen much like swift,then y marketing people is promoting the ritz,is that any fail in ritz y its not moving fast like swift.Pls help me kumar.