I had a project drop in my lap when I traded my clapped out XRS for a clapped out Supra project. It was a roller, but I got the W58 transmission but no engine. I also have a 2GR from an Avalon lying around, so why not mate in perfect matrimony?
Only catch is I discovered that the 7M and 2GR did not share the same bolt pattern on that gen of W58.

So why not adapt it? Then I thought of the new Toyota GR GT? Why not add an electric assist? I already need a few inches because the V6 is shorter than the straight 6. Then I started researching Prius transmissions for a few days straight, drew some heavy inspiration from the con op of the Prius. So then I came up with the following:

The electric motor MG1 becomes the alternator and starter for the 2GR and can provide electric assist and additional engine/regenerative braking. Then it’s coupled through the 5 speed manual transmission just like the normal car up until we get to the differential, where MG2 is installed on the rear of the differential and is coupled in with its own pinion gear where it can drive the rear wheels.

In the future, I’m visualizing this as a future Lemons car but also a proof of concept. It can be driven exclusively in neutral, advantages being it can limp back to pit with an engine or transmission issue. where it could exit a pit similar to a Cadillac LMP car, the other aspect is it can continuously accelerate during shifting as well as preserve rear brakes.

Additionally, after having another car in my garage for 6 years that’s almost done and may race this year, I’m not looking for an as-intense project with a ton of body modification. The way that I designed this was that the hard part of creating the adapter for MG1 can come first with software to support the motor later and I can build iteratively with the option to add MG2 later after the headaches of MG1 were solved.