I have had 6 Efficient Grip and 2 Efficient Grip Performance in Total on my 55 plate Passat 1.9 TDIi. They are very quiet, have reasonable road holding, but not at extremes. They do give good consumption and better ewra than the OE Contisprts. However I would not recommend them unless you can guarantee never touching anything with the sidewalls, as they are made of cheese or something even softer. The first set developed a bulge in one of the tires after 8K miles, meaning it was not safe and had to be replaced. I then bo
bought another pair when they fronts wore out and had a catastrophic blow out after only 10 days, meaning another £80 quid as Merit Tire says it's down to the manufacturer to say whether there is a fault. Do not buy these tires if you have to drive anywhere with even the slightest of rough conditions, and don't expect any support from Goodyear when they do blow