In its first two years, it was a multi-discipline series, with the rounds being made up of sprints (single car on track, against the clock), hillclimbs, and circuit races, similar to the Caterham Scholarship format.
A replacement Super Graduates class was created to accommodate standard ex-Academy cars with Rover K-series engines.
The championships did not take place due to the Covid pandemic in the UK, but one-off events were able to be run when restrictions eased.
The competitors come from a variety of backgrounds - a number have "graduated" from the novice Caterham Scholarship and Academy series, whilst many others have made it their first foray into motorsport.
At the end of the season, drivers drop their lowest three scores, to allow for missing a race or two, or a "DNF" (did not finish).
The DST exists to educate and advise drivers in all matters relating to driving standards, as well as issuing penalties where necessary.
The cars in the series are genuinely road-going, albeit with the deletion of lights, and indeed some are driven to and (hopefully) from races.
Many are used by drivers mid-week for transport to work and for shopping, needing no more than the covering up of competition numbers to make them road-legal.
No changes from the standard specification are allowed, putting the emphasis firmly on driving ability rather than car development and set-up.
Current classes are: Uses the Ford Sigma engine with TiVCT variable valve timing, as adopted by the Caterham Academy from 2014 onwards.
Many of the upgrades are optional (wide track suspension, quick steering rack, brake bias valve and race dampers/springs) so you need not do everything at once (or at all).
Upgrades include a limited slip differential, lightened flywheel and a further engine tune with different camshafts and remapped ignition.
Wherever possible, a low-priced "free practice" session is available before qualifying, so drivers can familiarise themselves with the circuit without having to book a full day of testing before the meeting.