imo, there's no point in plus sizing tires if you're compromising on all-season tires.
however, for reference, 215/45/17 goes to 225/45/17 and 235/40/17 where 225/45/17 is slightly taller and therefore will affect your speedometer slightly. 235/40/17 is pretty close to 215/45/17 but it's a weird size.
the V12 is a summer tire.
in 225/45/17 at tirerack, your best two bets are probably the bfgoodrich a/s and the continental dws, both around 115 each
wider means worse traction in snow, fwiw
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Q: What's the difference between a bolt and a screw?
A: First, you screw. Then, you bolt.