My dad drives so slow/slowest/slowly that it takes ages to get anywhere

When describing your dad's driving style, you can use both adjectives and adverbs to give a clear picture of the situation. Here are a few options:

1. My dad drives so slow that it takes ages to get anywhere.
2. My dad drives the slowest, making every journey feel like it lasts forever.
3. My dad drives so slowly that it feels like we never reach our destination.
4. My dad drives at a snail's pace, making every trip feel incredibly long.
5. My dad drives at a crawl, making even short distances feel like an eternity.