Yeah the balloon is basically the residual value.
Looking at the moment, there's not much in it between a Mk8 R and the RS3 sportback... 48 months, 30k miles.
32% residual on the RS3, 28% on the R....
No options on either for that calc.
The RS3 on 48 months, 5k down and 30k miles per year is just under 900 a month.
Base Golf R on the same terms is 640 a month.
Back in 2016 you could get a Mk7 R could be had for 300 a month! Things have moved on with car prices!