Hello Knightstonethornbird,
Several threads on the USA Volt site addressing this question.
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If you want to walk the line between efficiency and good traction then:
1. Michelin Primacy MXM4 (USA name)
2. Turanza Serenity Plus
3. Continental PureContact
If you want even more traction and don't care about losing range/mpg then:
1. Michelin Pilot Sport A/S 3
Just know that with any of the above tires you WILL lose range and fuel economy vs. the OE tire or the Ecopia EP422.
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The highest performance tires are Bridgestone Potenza RE-11s, more cornering/braking/ grip than you would ever believe a Volt could have.
I have a set and love them, they are also quieter than the OEM tires, although they have a little bit of a hum to them at speed.
However your range will go down by 4-5 miles per charge. (speaking from experience) I kept my OEM ones and will put them back on for the winter, need the extra range so I can run my heater
I haven't replaced my tires, but I do know that the Michelin Primacy MXV4 was the #1 rated H-speed tire by Consumer Reports.
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It got an "excellent" rating for Rolling Resistance, Noise, and Ride comfort; "very good" rating for Dry and Wet Braking, Handling, Snow Traction, and Tread Life; and "good" rating for Hydroplaning and Ice Braking.
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There is also a Youtube video from here in the USA where they put 3 different tires on a Nissan Leaf each achieving different characteristics.
Not quiet sure what you are looking for but maybe this will give you some ideas.
Ross
