Honda Civic?

If you are keeping up with the maintenance of the car (has a good service record, uses premium oil), you don't drive it like a maniac (accelerating and braking hard a lot-which wears down your engine), keep the undercarriage clean and protected from salt during winter (if you live in an area that gets snow the salt on the roads will eat away at the important parts of the car) and there haven't been any big repairs/damages to it you could have it until it reaches 200,000+ miles (50+ years). It all depends on how you care for it and how you drive it. But 4000 miles per year does not seem like a lot. I don't drive a ton, I'd say less than the average person does and I get like 10,000 miles a year. I've been reading that it's actually better to drive your car consistently. Like how you would walk your dog everyday to give him exercise, a car is kind of the same way. Driving it on a regular basis keeps its juices flowing and parts moving.

Impossible to say. Rust may kill it before miles do, or at only 4,000 miles a year lack of use or lack of long runs to get properly warm may kill it earlier than 10,000 miles a year would. 40 miles 100 times a year would be much kinder to the car than either 400 miles 10 times a year, or 4 miles 1,000 times a year.

Also the risk of accident damage is still there, even when parked.

I eat well and exercise. How much longer will I last Dufus?!

25-30 years

Depends on the year. There was couple years, 01 and 02 that had bad automatic transmissions, but most Civics will run forever.

There is nothing that can't be fixed - the problem is that the fix may cost more the car is worth - and that is how long it will last. There are no hard and fast rules about longevity.

If maintained properly and not driven hard, you can expect it to go over 300,000 km.

I currently have an 03 Camry with over 280,000 km on the odometer. It doesn't look very good (some rust perforation and faded paint), but it still runs just fine. And I drive a whole lot more than you do in a year.