Hi Im looking at purchasing a new 181 car ,initially i wanted an suv ,test drove the Kia Sportage which i love ,also the Opel Grandland x which i didnt get overly excited about .However the opel insignia caught my eye in the showroom and now im torn between Kia Sportage and Opel Insignia ,any advice which would be better for fuel (both diesel models) ,comfort and speed .I like to drive a car with a bit of speed in it .Any advice would be most grateful .