it's just a lot easier to park illegally (space wise) when your vehicle is huge / larger than the usual parking spaces. on my usual bike route there's at least one spot where people often park huge vehicles partway over the bike lane, forcing me to divert into oncoming vehicular traffic. small cars fit, broad cars don't. by law, they're plain not allowed to park there, but when you call the drivers out on it, they usually just argue that it's not their fault if the parking spots are too narrow.