I tend to go through phases in which whenever I find a bunch of books I'm really interested in, I'll read a ton. But, once I finish those, I'll read less for a while. I think my top speed if I'm really invested in what I'm reading is around 800 pages a day, but I never sustain that for long because I run out of book.
I pretty much exclusively read fantasy, with a focus on books with hard magic systems, progression elements, and/or some sort of cultivation (which itself is a progression element).
When I was a kid, I struggled with reading for years because I wasn't interested in anything I read at school. I only really started reading a ton when I found books I was interested in (fantasy), which in turn made me a lot better at reading from all the practice.
Somewhat more recently, I've started reading webnovels in between traditionally published books, which is nice because you get a continuous drip of content. I also generally just read on my phone, as it's very convenient to pop out a book wherever I am. I like physical books too, but I don't tend to get through them as fast because I can't fit them in my pocket and take them with me everywhere.
My experience is that if you want to develop a habit of reading a lot, you should focus on finding something you enjoy, as it's a lot easier to make a habit of doing something you like than something you don't like.
If you're in a situation where you can't get out of the space without bonking the cars next to you, wouldn't you most likely have had to bonk them to get in?