This is an exmaple of a suspension geometry with positive scrub radius. Positive scrub is generally preferred in racing. Scrub radius is explained in this article – What is Scrub Radius

This is an example of a suspension geometry with zero scrub radius. SCrub radius is explained in this article –

This is an exmaple of a suspension geometry with negative scrub radius. This can be used to create a safe, road based design. Scrub radius is explained in this article – What is Scrub Radius