No, you can't always drive any car if you have fully comprehensive insurance. You'll need to check whether your policy has a driving other cars clause.
If it does, you’re good to go. If not, then you need to contact your insurer before driving another vehicle.
Some fully comprehensive policies come with driving other cars clauses as standard, but you may need to request it for others. So never presume you have it.
To be eligible for driving other cars cover, you usually need to:
- Be 25 or over
- Have fully comprehensive cover
- Have a policy that includes a driving other cars clause
- Ensure the car you’re driving is already insured
- Ensure the car is roadworthy
Also, having fully comprehensive cover doesn’t automatically mean anyone can drive your car either.
If you want to share your car with other drivers, you may be able to add them to your policy as named drivers.
Otherwise, you need any driver car insurance, which allows anyone to drive your car with your consent.