I write a lot about Mini-Z chassis setup, upgrade paths, and race prep. It’s fair to ask what I’m actually running. Here’s the answer.

Close-up of the Raybrig NSX, primary track car

The Raybrig NSX: Primary Track Car

My main car is an MR-03 RWD ReadySet in the Raybrig Honda NSX-GT livery. Blue, #100, Super GT series paint. It’s the one that sees the most seat time — club nights, practice sessions, the occasional parking lot shakedown when I want to test a setup change before I commit to it at the track.

I like the NSX body for a few reasons beyond the look. The Super GT proportions work well on the MR-03 chassis without fighting the aero balance the way some of the wider bodies can. It also photographs well, which matters more than I’d like to admit when you’re writing about this stuff.

The car is stock out of the ReadySet right now. Full upgrade breakdown is coming in a separate post. Short version: I’ve kept it mostly bone stock intentionally, because I wanted a baseline reference car before I started layering in parts. That experiment is nearly done and I’ll write it up.

The McLaren Senna GT3: Second Car, Different Job

The second car is an MR-03 RWD ReadySet in the McLaren Senna GT3 livery. Orange, #12, Richard Mille branding. It came home a few months after the NSX.

Close-up of the McLaren Senna GT3

I didn’t buy it to have two identical cars. I bought it because having two cars at a club night means you can swap when something goes wrong mid-session instead of spending your race time on a table with a screwdriver. Broken motor connector, dead gyro, tire that’s given up — pull the backup car, keep racing. Sort the other one out after.

The McLaren is also where I try things first. New T-plate, different tire compound, gyro setting I haven’t run before — that goes on the orange car before it touches the blue one.

Both Cars, One Pit Box

Pit box overhead: both cars and the KT-531P in foam

Both cars travel in the same pit box, cut in foam. The KT-531P transmitter sits between them. Everything fits, nothing rattles, and I can carry the whole setup in one hand.

The KT-531P is the stock transmitter that ships with the MR-03 ReadySets, and I haven’t replaced it. It works. The ergonomics are reasonable for a 2.4GHz stick radio at this price point. If I end up racing more seriously I’ll look at the Sanwa options, but for club night the KT-531P is doing the job.

Both cars on the cutting mat — NSX in front, McLaren behind

What’s Coming

I’m writing up the upgrade path for both cars separately — what I changed first, what actually moved the needle, and what I’d do differently if I were starting over. The NSX baseline experiment has enough laps on it now to say something useful. The McLaren is a few months behind.

Pit box top-down view, McLaren on top, NSX below

This post is just the introduction. If you want to know what I’m running and why, check back — the specifics are coming.

— Mini-Z Modder