I don't see what the problem is. If you were running ahead of all those guys that bought new cars before they bought their new cars - and now they're passing you, then one of these things happened:
- They got better just by switching cars
- They just got better and you didn't
- You're slacking
I'm just kidding of course
Look at where the RRR has been over the last couple of years - Evo, then Evo WC, Evo2 and the Evo2 WC. What's next? Evo3? All these little incremental changes are great, but all they've kinda of done is steal parts from the Evolva and dremel the chassis a bit.
What if, the MTX-4R is already at the end state of the MTX-4 product line? Would knowing that make you happy? How about if they stold parts from the MRX-4 and slapped that on the car and released the MTX-4R2? Would that make you happy?
Maybe Mugen looked at their car and said, "You know what? This is as good as it gets." That's what Juraj said with the NT1. Why can't that apply to the MTX-4R?
If you really think you're slower because Mugen hasn't up'd their game and put out a new car, then perhaps you should try one of the new cars and see if you actually do better. And then if you are faster, look at your MTX-4R and ask yourself, "Now what can I do to make my old car move as fast around the track as this new car?" That's what I did.