Good to see the 60a is 20 kg quite heavy the L version
must be bigger imput shaft and bellhousing material?
I was looking at the latest Ultima world record car
it only has 3 speed gearbox sequential setup.

Id love a 4 speed with a torquey a15 but will
need all custom ratios

eg.

2.6
1.65
1:1
0.5