V40 older average miler or newer high miler

I am looking at two V40s and would appreciate some advice to help me
make a final decision.

The choice is between:

1) 1999 V40 2 litre (basic model) with below average miles for the year
plus service history
2) 2001 V40 1.8 GDI SE (a few extras) with high miles (90,000) plus
service history

In terms of drive, look, feel, they are both fine.
My main concerns are over:
1) Advantages/disadvantages of buying a newer high miler over an older
car with average miles
2) Economy: I average 7000 a year, mostly urban, so I know my fuel
bills are not going to go down! Does the 1.8 GDI offer noticeable
savings over the older 2.0 engine?
3) 1.8 GDI engine. Have read a few negative postings about this
particular engine - is this one to avoid?

Any feedback would be appreciated

Thanks