Now that I’m retired I’m driving my antique VW buses around town quite often.
WOT is a necessity with 36 (1200cc) and 57 (1600cc) horsepower, with the 1200 panel bus I use the throttle as an on-off switch most of the time.
Acceleration is not really a thing with these it’s more like gathering speed. Uphill it’s WOT in 3rd gear usually for both of them.
Lack of horsepower doesn’t mean they’re not capable, just don’t be in a big hurry to get where you’re going.