Ffs! The first no is the width in mm, the second is the profile of the sidewall, the third is the rim diameter. The profile isn't a fixed value it's a percentage of the width, so the sidewall on a 195/80/15 is 80% of 195mm on a 205/80/15 it's 80% of 205mm, any retarded tyre monkey should know that and you don't do it on a 4x4 particularly one like the freelander! You end up with the wheels spinning at different speeds which not only winds up the transmission but can also trigger abs or traction control or put faults in the systems! I'd go elsewhere cos they don't deserve your money!!!