My husband and son (2.5) have one major thing in common; their love of fast cars and Top Gear! I bought this for them for christmas, as an activity they could do together. (Given the small pieces, my son couldn't do it himself, it is recommended for ages 7 and up). On Christmas morning, they spent hours assembling and re-assembling the car, and playing with it. It fits with other k'nex and legos as well, so the possibilities are endless. My favorite part is the little stig lego-man! Awesome.