Re: @Stacy pedant alert...
Pinking is detonation, and it can rip the tops of the pistons and p destroy the valves if you leave an engine doing it for long enough! Modern cars don't generally have this issue as combustion is very tightly controlled by the ECU, but it's something that you need to be careful off when you have to set the car yourself - an old classic for example. I don't worry about it with the V70, but my Spitfire gets tuned regularly to ensure the timing hasn't crept out.
And not, not all combustion is not the same as exploding. When petrol burns it expands quickly and puts pressure on the piton head to push it down, expanding all the time to keep the force on the piston throughout the stroke. When it pinks, explodes, there is an instant force on the top of the piston. This force is initially far greater and hotter causing both too much force on the bearings, piston rings etc and also causing hotspots due to the greater, more localised heat. Once the explosion has ended there is no longer force on the piston head to finish the stroke causing an imbalance in the engine - putting even more atypical stress on the components.
If left untreated (timing change, using a different fuel, getting the compression ration checked etc) then you will do serious damage to the engine.
If they make a V70 plug-in maybe it would be something that I would consider
You're right, electric motors have instant, 100% torque. And yet most modern cars using them suck when comparing them to petrol engines. Same for motorbikes. At present they just can't produce the instant bang of power from the battery packs that petrol engines can do from a petrol tank. Battery technology is just not there yet. It'll get there, and I'll be happy when it does. But it's not there yet - if it was then more cars would be electric (and the ones that are available would have *much* better performance ;p)