1) How many cars do DLOC members own and how many of them are SP250s?
2) How many DLOC members are there and how many own an SP250?
No doubt a member of the Board or someone with access to the data could investigate.
The SP250 Club's website says that 1656 cars are known about out of 2656 built (including those destroyed or wrecks, I believe) and 903 are listed in PasSPort.
It also says that
How many cars of all marques are owned by DLOC members? We could then calculate the proportion of the DLOC's cars that are SP250s. (My guess is 15% to 20%).It is important to note that we are in association with the Daimler & Lanchester Owners’ Club (DLOC). At last count, it is estimated that approximately 350 DLOC members are SP250 owners and we have 700+ SP250 owners registered in pasSPort. We therefore urge SP250 owners to join the DLOC.
Alternatively, how many DLOC members own Daimlers, Lanchesters or BSAs? This would also allow a percentage of DLOC members owning SP250s to be calculated approximately as many members own more than one car, even SP250s and others.
The total DLOC subscriptions in 2017/18 divided by the subscription indicate a DLOC membership of about 2000 people so 350 SP250s in the SP250 club owned by DLOC members would indicate 17.5% if members only owned one car. Some don't own any cars and some members have more than one SP250, so estimates can only be approximate.
Edit: the AGM minutes report the membership as exceeding 1550 which would mean 350 Darts is about 23%.