Our LFS S2 demo is completely free without time restrictions, but it contains only one track environment and three cars.
If you want access to more cars and tracks in S2, you have to buy a license, which will allow you to unlock S2 on your computer. Partially with an S1 license, or fully with an S2 license.
There are two types of licenses your account can hold:
S1 license, allows you to unlock the S1 portion of LFS S2
S2 license, allows you to unlock the entire content of LFS S2
If you currently have an S1 license, you can upgrade to S2. Otherwise an S2 license.