Cyberpunk Mx5 - Speedtail Spoiler (Patreon)

I'm working on the spoiler now which is a speedtail inspired by a few other pieces as well as some renders.So as always, first step is to mock out the shape with cardboard.Once I had these 5 templates figured out I transferred them to mdf to be fixed to the boot and give me a solid guide to help when shaping the foam.My legs are killing me from all the squatting over the past couple days to check eye level with all these and making sure everything is absolutely perfect, but eventually I got all the guides sussed.Next up was the usual step of boxing up and then pouring the expanding foam.Then about a full day of sanding later I had the top half and the finished outline roughed in.That's where it's at now, I plan to finish shaping the bottom side of it tomorrow. I plan to do the same thing with filler over the top of this but I know if I do that without reinforcing the foam it will likely crack so I'll be putting a thin coat of fiberglass over the filler just to create a shell that I can put filler over the top of.A FEW DAYS LATER

Been making some good progress on this. Started off by applying some fiberglass just to give the foam some strength when it came time to sand the filler.For the glass I just did 2 layers of 80 gsm tissue. Not trying to build up any real thickness, just trying to make pretty much a shell for the foam so it doesn't move around during the filling stage.Speaking of, next up was to apply the same filler as for the roof.One thing I had to sort out with the filler was the far left guide was actually around 10mm too low at the tip. I didn't notice this till reviewing some of the pictures but I used the filler to build up the height again until it was all symmetrical and then shaved off the underside to keep the profiles the same thickness the whole way along.It took a fair bit of sanding and checking with gauges and templates but I'd say I'm pretty happy with where it's at now.Now the fastback is ready to make the fiberglass skin.My plan initially was to build the sharkfin spoiler into the roof but after seeing it all take shape I've actually decided to change the shape / material of the sharkfin and so I will now be adding it as a separate piece afterwards.To give you an idea of the new shape that I am planning at this stage, here is a super rough initial mockup of what I had in mind.So hopefully I'll be able to get this roof sealed and the skin fiberglassed pretty soon and once I've got that fiberglass skin I can start cutting louvers, making the sharkfin, and just finishing it all off.I've got a lot more planned for this rear end so once this roof is finished I'm going to move straight on to the next part which will be the new taillights.