0 points for non standard gearbox, 1 point for L gata engine.
2 points for standard suspension, 0 points if aftermarket adjustable coil overs.
So my gearbox isn’t a Zed box is that 2 points, Rebello 3.2 is that 1 point and suspension 2 points
The DVLA website and guidance are woefully vague so there have been many consultations and requests for clarification with the DVLA on the specifics. If you read as written on the DVLA website, you may start to wonder if any of our modified cars get enough points. BUT, when you understand what is actually meant by the rules and what the type approval tests look for, it's not as bleak as it first seems.
As Jon has alluded, so long as the engine is a straight 6 of OE type, it still gives you a point. As strange as it sounds, even an RB engine won't lose you points. That one has been put that to the DVLA before. But a BMW straight 6 though? You may or may not be able to argue the toss during a type approval inspection, depending on how the inspector considers the meanings of original configuration (straight 6) and OE type.
The coilovers always end up in an online discussion about interpretation. Reading the FBHVC consultation literature when the ruling was coming in, I understand that this rule was meant for things like converting leaf springs to coilovers; or for example, a TR's Strong Arm Lever dampers and separate springs to coilovers. In fitting adjustable coilovers on a Z, you are keeping the same suspension configuration and most importantly, you're not changing the "method of operation" - just providing additional capability. As far as I understand, it doesn't lose you points. I have had to clarify these points with the DVLA to ensure our club dating letters are not off the mark in declaring a Z as a VHI.
Good read here even if still a touch vague on the details - https://assets.publishing.service.g...ical-interest-substantial-change-guidance.pdf
Also there is a clear message: "5 of these points must come from having the original or new and unmodified chassis, monocoque bodyshell or frame". Changes to the subframe by putting on new parts of the same shape and type are OK. But cutting out the spare wheel well to put in a fuel cell is considered to be modifying the monocoque. Adding a roll cage or beefing up chassis rails is also OK. Altering bits of the chassis / monocoque to fit in a wide gearbox or engine not OK.
So in the case of the car discussed in this thread, in my estimation it gets:
- Chassis, monocoque bodyshell: 5 points from what can be seen in the photos.
- Suspension (front and back): 2 points - and I'm taking the line that coil overs do not constitute a change to the method of operation
- Axles (both): 2 points (even if TTT control arms are used, it's not changing their configuration / method of operation i.e. you're not changing to double wishbone etc).
- Transmission: "nil po'an" (as they say in the Eurovision song contest)
- Steering assembly: 2 points (assuming original rack and pinion set up).
- Engine: "nil po'an"
Previously we had a thread on that topic but I can't seem to locate it. We shouldn't clog this one up if the discussion wanders from the car in question.
(And finally a disclaimer: These are my personal views based on my own investigations for club dating letters etc and not the views of the club itself. If you have genuine concerns about a particular vehicle, you should always gain clarifications directly from the DVLA and make absolutely sure you are not exposed to "interpretation".)