Thank you to Dougal Cawley from Longstone Tyres for these recommendations.
Tyres on a track day are important- unless you are trailering your car they need to be e-marked as road legal and be capable of dispersing water when it rains. In addition, they need to be grippy enough for hard cornering and able to withstand the heat generated. As Dougal points out, it is important to make sure you do not over tyre your car by fitting wider tyres than it was designed for- this leads to all the other mechanical components working harder and less progressive handling (i.e. the car will snap from oversteer into a spin quicker).
I use Avon CR6ZZ on the Morgan 4/4 Sport Competition and I really like the dry and wet handling. Being a “taller” tyre it also provides good ground clearance on the road. The CR6ZZ is available in a wide variety of sizes that will fit car from Minis through to Austin-Healey 3000s and Ford GT40s.
The Michelin TB5 is a road-legal competition tyre for dry conditions with a semi-slick tread pattern, available in soft and medium compounds.
The Michelin XWX was the highest speed rated tyre of the 1960s and 1970s and is still manufactured today. Original equipment for period Ferraris, Lamborghinis, Mercedes and Maseratis, the tyre is a high- performance road tyre with good durability.