Just bought one in U.K. today, hopefully bringing it home this weekend, this is my 4th car that I imported. I went north for the first one 18 years ago (and I still have that car too!), but I think the travelling across the pond is a better bet. That’s what I’ve done the last 3 times. It doesn’t always work out cheaper, it really depends on what you are after. You definelty have more choice if your are looking for something more specific.
There’s some new rules ithat came in during 2017 that resulted in higher motor tax for cars that were £40,000 when new, they have this levy fo the first 5 years of the car’s life. That might result in some bargains for 2 year old premium spec cars that are less attractive to the local market.