Ugh, I'd rather not see FX or AMC. The great thing about BBC not having commercials is they're free to crap all over cars without worrying about pissing off advertisers. What if, say, VW for example buys ad time on Top Gear - would any reviews of VW cars actually be honest?
Netflix, I think, would be the best option. IIRC, they're already available in all of N and S America, most of Europe and AU and NZ. No worry about walking the fine line between honesty and advertising. And it would be a huge financial win for them. Netflix spends more producing one episode of House of Cards than the BBC spends on an entire series of Top Gear, and the show is a goldmine - it would basically be a license to print money.