I replaced my factory fitted Michelin Energery Saver+ with GoodYear EffecientGrip Performance about a month ago which where on offer at halfords for £85 a tyre fitted. Plenty of thread left on the originals but perishing advisory on the MOT. One thing I noticed with the new tyres is that my fuel efficiency is now alot better in urban driving and they do feel very "grippy". Note my experience is with the 15" tyres, so YMMV on 16" rims.