Smoking joe, get a spare wheel? Jag spare fits, ford jack all available off ebay.
Manual says;
Note: Using a tire or wheel that is not recommended could cause steering, suspension, axle, power transfer unit or rear drive unit failure. Incorrect tire or wheel use can cause damage not covered by the vehicle Warranty.
Your vehicle does not have a spare tire. We do not recommend using a mismatched tire or spare wheel. However, in an emergency, the system can tolerate a mismatched tire or spare wheel of a different size to the original for a short journey. The system may automatically enter front-wheel drive only mode to protect driveline components. An all-wheel drive off warning message may appear in the information display if you install a mismatched tire or spare wheel. See Information Messages. The message turns off after you reinstall the correct wheel and tire and you switch the ignition off and on. We recommend that you reinstall the repaired or replaced wheel and tire as soon as possible.
Major mismatched tire or wheel sizes between the front and rear axles, for example 18 inch low profile tires on the front axle and 20 inch high profile tires on the rear axle could cause the system to default to front-wheel drive only mode. Damage to the system can occur that may not covered by the vehicle Warranty.
The system can tolerate any combination of new and worn tires of the same original tire size. For example, using three worn tires and one new tire.
Personally if I had to put a new tyre on I’d put same type as other tyre on axle and if the other tyre had less than 3-4mm left replace both, plus you could pick the best tyre on car with most tread to go with new one.
I rotate front to back to keep wear even.
