I liked the first one because i was 18 at the time. The second one i was already like... Okaaaay, i don't care anymore. Now i find them more entertaining than ever. Because nothing makes sense anymore.
One of the last movies Dom was in this sewers kinda thing with his girlfriend (?). They ran away from some bad guys. Dom then locked the hatch in front of him, locking himself in with the baddies, his girl being on the other side of the hatch. She didn't run away, she just stood there and watched. He then pulled on some chains, ripping down some concrete bridge with his bare hands, crushing the bad guys, and he then opened the hatch again and they left together. Honestly that was one of the funniest scenes i have ever seen in a movie.
The movies used to be action and car movies. And they are not very good at that. But if you watch them like a neil breen or a tommy wiseau movie, they are funny as hell