I was playing only gt6 and found out that there is no way to tell stats of horses other than building some 'training ground', sure you can just eyeball it but something more exact would be great. So may be magnifying glass can be used to see horse stat?
Another thing I'd like to suggest is something like dresser for hotbar(tool rack?), may be it could also be tweaked with screwdriver to switch certain slots.
As for me it starts to get quite annoying when you work outside of your workshop and have things like shovel, torches, bucket, and everytime you go inside to work on machinery you switch hotbar to wrench, saw, magnifying glass.