On changing from a MkII Octavia hatch to a MkII Superb saloon the only things that I missed was the rear wiper and large door pockets (with room for a large bottle of water), nice to be getting them back.

The bottom one is best, it has nice exhausts!

I have the rear wiper, it was on the vehicle in the dealers showroom. My Estate needed a wipoer as it was the dirtiest rear window of any vehicle on the roads and was needed. My MKII hatch did not seem to get very dirty until driven on a wet road, the wiper does clean the window very nicely. When I get my next MKII Hatch it will have the rear wiper. As to any decrease in fuel economy what a load of rubbish, possibly an eggcupful per 1000 miles.