kph doesn't bother me, but I'm American, and we're pretty sad and pathetic when it comes to metric, and it's similar enough to how "mph" is used here that it immediately makes sense.
What makes your specific comment funny is that we're talking about different usage of things in different languages and countries, and in one sentence you managed to express frustration at how other people say things incorrectly, while using an English idiom incorrectly. It's "drives me up the wall" (singular "wall").
kph doesn't bother me, but I'm American, and we're pretty sad and pathetic when it comes to metric, and it's similar enough to how "mph" is used here that it immediately makes sense.
What makes your specific comment funny is that we're talking about different usage of things in different languages and countries, and in one sentence you managed to express frustration at how other people say things incorrectly, while using an English idiom incorrectly. It's "drives me up the wall" (singular "wall").