Bought my wifes 02 GT new, 2 years now and still waiting for the downside, I
have the
10 year B to B and will keep it that long at least (kept a new chevy van for
24 years) .
Michael, if you can keep a Chevy van (or any vehicle for that matter) for 24
years then you must care for your vehicles, and must maintain and look after
them well.
That is all your wife's Elantra will need and it should last just as long
provided it is not in a wintery (salt on the roads) type climate in which
case the job gets that much harder.
The difficulty in keeping the EGT for 24 years would be parts. Unlike Chevy
which not only keep the same parts for years and years, re-using the old
technology on new vehicles etc., there is a good aftermarket support. The
same cannot be said for Hyundai, so you'd likely run out of parts long
before the 24 years are up.