Mercedes Benz

Presently indian mercs.& latest e class have rim size 16.the rim size 15 keeps my car low for indian roads.shall the change if possible adding broader tyres effect the efficiency of the engine?

Yes you can fit a 16" rim, but keep in mind that you will want to keep the overall tire diameter the same, so going to a 16" wheel will not raise your car. based on the tire size you provided, your tire diameter is roughly 25.5". your closest sizes for the 16" wheel are 205/60-16, which is slightly bigger at 25.7", and 215/55-16, which is slightly smaller at 25.3". you need to stay as close as possible to the original diameter because you will throw off your speedometer, and you may have clearance issues as well. if you need to gain additional ground clearance, your best bet is to look into replacing your springs for ones made for that purpose.