GM Made a big mistake by phasing this model they've to bright back this to market

GM Made a big mistake by phasing this model they've to bright back this to market very good at highway u can't compare the comfort with other vehicle simply superb only the problem is the less ground clearance my friends opel astra is giving mileage in city 8km and highway 11 km mine is MPFI Engine his is Corroborator Engine is it any difference is there
In city i'm getting 12 and in Highway 17Good interiors Sporty and Comfortable Vehicle