Insurance Coverage
Read YOUR auto policy, more than likely it will exclude a vehicle that is used by you on a regular basis. You don't state why you drive this other vehicle which is important. If you use it frequently I suggest you contact your insurance agent and purchase "non owned liability" as an endorsement (sometimes called Driver Other Car coverage) to fill this gap. Should an accident occur both the owner and you as the driver could be held liable, and of course you can both be sued regardless. Hope this helps...you just need to check with your agent, that way you won't need to make a post here after the fact!