Should I buy a Ford Ka that has stood idle for five years?

I've been offered a Ford Ka on a 53 plate with just 18,000 miles on the clock. The low mileage is because it has been standing in a garage for five years. Should I buy it as a low mileage motor or run...

Tucked away

An elderly friend of ours has a November 2000X FIAT Seicento SX 899cc with only 34,000 on the clock. It is in good condition with no rust, but it has been sitting in her garage for the last couple of years...