I just had the 416 out to poach some parts and took a look at the ackerman the cars can do side by side. I found the TOP can't quite achieve the same ackerman that the TRF pro drivers run 99% of the time, the closest is forward position with insert 9, but the 416 with 5mm of spacers has even less angle between the wheels. They are different cars so it probably doesn't mean much but I thought that was interesting. I also found the 416 can get a bit more lock