My experience is hours of grinding & watching advertisements only to find I can't upgrade my bike to something competitive without micro transactions. The timing model was a good choice for this app but that's where the good ends. Rubber banding is too strong, the field is always in a similar order, the relative pace depends on upgrades too much and there's way too much focus on points. Focus on the racing: show full results, mix them up, add quali & tyre compounds, & make this a 5 star app.