A small amount of ethanol is no real issue, only for older cars. Ethanol content is actually better for performance as it has a higher energy density iirc

Disillusioned with the quality of our fuel and fact that you can't get 98 (which I've always run in my cars when abroad), I've started adding this to my tanks:
http://www.halfords.ie/motoring-travel/engine-oils-fluids/fuel-oil-additives/millers-petrol-power-ecomax-500ml

No idea if it will yield any power/MPG improvements but I'll use a full bottle and then stop using it for a while to see if I can see a difference. With the new injectors/plugs/air filter/additive (and on Avon ZZ5 255/35/19 rears), the traction control is having a harder time than before!