Most vehicles allow a 1" increase in rolling diameter, even small cars. Now, once your suspension requires replacement you might hear the odd scrape noise from the fenderwell plastic, or when carrying a full load (or overload of cargo) in the back.
The main thing here is you cannot go by tire size itself. Some manufacturers for winter tires, have increased real world tire diameters because of the additional tire tread depth. If they are used tires it may even be closer to a 3/4" taller diameter. Winter tires are 'shot' at 5/32" tread remaining, where as standard summer/all season tires are toast at 2/32".
In terms of steering, if you find at full lock that the tires are rubbing on the fenderwell (on older vehicles, the plastic can come loose anyway) you can take a strong Xacto knife and trim the plastic fender accordingly. In some cases, the plastic might be brittle enough to twist and crack a piece or two off, although it might not break off where you want it to.
Check out
Tire Rack - Your performance experts for tires and wheels, you might get lucky and the bolt patterns might match so you don't have to swap tires/wheels.
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