Onboard with Jon Barnes driving a lap of Snetterton 300 Circuit in a Caterham Roadsport (Caterham UK Championship specification on Toyo R888R tyres). 
10th April 2025. 

Lap time: 2m13.44

This is a lap on used Toyo R888R tyres as a reference / car setup assessment for one of my coaching customers. 

Due to my coaching customer being so small and light weight (just 50kg or so herself), this Roadsport is carrying around a massive 50kg piece of lead bolted to the passenger side floor so that the car meets the championship minimum weight limit when she races it. 
This means the car is very, very overweight once I am sat in it! As you may be able to see from the video, the car is a bit sluggish off the corners for this reason - however the lap time I was able to achieve was still 0.8s faster than the lap record which was set during the race weekend.