Some people do; some people don’t. Some people enjoy it; some people don’t. Driving in the rain, that is.
Apart from being the title of two wonderful books—the real racing one by John Horsman, (Racing in the Rain) and the other (The Art of Racing in the Rain) “written” by that very smart, racing savvy dog—racing in the rain is much more a European activity. Circle track speedway, especially the high-speed ovals, for good reasons of safety, have their rain delays. On the other hand, road racing, like golf, does not hesitate to continue when the skies open. If one can drive on the highway in heavy rain, then why not on a road course? There are some countries where if wet weather racing were not permitted there would actually be little competition. Just like golf in England, where the saying goes, “If you don’t play golf in the rain (or snow) you won’t play much golf.”