It can work, 4 hours ain't that bad if both of you are able to make the trip and your work schedules are somewhat similar. But this depends on what type of person you are; do you need to see your "partner" more than maybe once a week (let's say you can meet on the weekends)? Or do you enjoy alone time and is it enough to text/facetime etc. during those breaks?

I've had one long-distance relationship (though it was a 3 hour flight instead of a drive, she was from another country) and it had its pros and cons. The anticipation of finally getting to see her again was incredible and it kinda kept things fresh and magical 'cause we could only see each other once a month for a few days. The adrenaline rush of seeing her smile when we called on facetime, the waking up to see her message, and her finally running to my arms at the airport.. I've never felt anything like that before - and probably never will.

But the cons were that sometimes missing each other almost physically hurt if we knew it was a long time until we meet again. And the pressure of having to be "perfect" every time we finally saw each other (that's a real issue you have to tackle if you gotta map out certain dates to make the trip). Plus the doubt of "can we actually make this work?" etc. And eventually it ended due to the doubt and things not always working out perfectly - though the difference is you two already have dated, we met when she was in my country on holiday so we didn't have the chance to really get to know each other before the long-distance scenario began.

I always think that I'd regret more if I left a stone unturned than go through with something that might end up hurting you. If you really like the person, go for it. The worst that can happen is you put time and effort and your heart into something that ends up not working out. That's life, that's relationships.