It depends on the year, trim level and wheel size. Common fitments can include sizes like 215/60 R16, 225/55 R17 or 245/45 R18, but you should confirm your exact size on the tyre sidewall or by using the reg lookup.
In most cases, yes. Fitting matching tyres (same size and similar tread pattern) on the same axle helps maintain stable handling and predictable braking, especially in wet UK conditions, and supports systems like ABS and ESC.
The legal minimum is 1.6mm across the central three-quarters of the tread around the full circumference. Many drivers choose to replace at around 3mm for better wet braking, and sooner if you regularly drive on motorways or carry heavy loads.
After selecting your tyres, choose a nearby fitting centre, pick an appointment slot and place the order. On the day, the garage fits the tyres and can also check pressures and condition. Bring your locking wheel nut key if your Insignia Sports Tourer uses one.
