Import Rust Concerns

[RowntreesCabana]

I've just purchased a 2001 Subaru Forester. Its mint underneath having just come over, but I'm a little bit worried what its going to be like in 12 months. I've read that the Japanese spec cars for the Japanese markets don't have underseal/rust protection at source and will deteriorate very quickly once they experience a UK winter.

Is it really this bad or is this just scaremongering?

[RowntreesCabana]

OK cheers, I'll get it undersealed asap.

Hoping the bodywork is tougher.