Made in Mexico should be a factor for a purchaser at any time.
Why? Production & transport costs are irrelevant once it's on a dealer's forecourt.
Or do you think Honda's assembly plants operate to different standards?
Ayutthaya, Celaya, Guangzhou, Greensburg, Karawang, Pingtung, Rajasthan, Saitama, Sao Paulo, Swindon, Yorii, etc.
Anyway the cheapest base model HR-V today can be had for £17300 new, so I'd estimate it will be at least 7 years for it to be worth £5k.