With my New Zealand accent, no matter how hard I try I can't make the "R" in red and car the same! Car for me is pronounced something like "Kah".
And be careful with “ah”. I have a strong suspicion that we pronounce it very differently in New Zealand compared to North America.
Speaking of which, it wasn't until quite recently that I realised not all accents have so much trouble with the ambiguity of the Ford Ka.