In a car specifically? Then the record for that would be about a day? From Singapore to Malaysia.
If آپ include other vehicles like vans یا buses...*shudders* the longest was nearly three days. A grand total of 56 hours. Luckily, that vehicle was an RV. Touring China's countryside in it was fun but I think I got motion sick halfway through the first day. I remember begging my mom to let me out of that thing سے طرف کی the end of the سیکنڈ day. I vowed never to ride one of those things again...