With the car jacked up it is not difficult to access the inner rims with a rag. Wear old cloths. Biker’s cleaning brushes are quite useful. For a thorough job, get the wheels off and tidy up round the wheel arches while you are at it.
Chris
2015 Plus 4 Silverlake Blue (2014 3.7 Roadster Crystal Blue) (2012 4/4 Sport Black)