I too have, within limits, enjoyed the MotoGP season - particularly as, living in Spain, I get the excitable Spanish commentary on the 125 & 250 before switching to the poor-but-in-English jobby on the Beeb! As for the cars...well I gave up on expecting much from them years ago. Both disciplines have suffered in my opinion from excessive control over the past many years - for the 'bikes; age limits and singles-only limits on the 125s, riders only allowed to race in one class, generally strict controls over specifications, and as for the cars the only way they will ever get some interest back into that lot is by restricting the width of tyres to around one-third of what they are now. No more technical restrictions would be needed, as a 5-litre turbo motor would soon chew up its rubber, yet a smooth 2 litre be slower on top speed - the tortoise or the hare....that would add a bit of technical interest! That would stop the problem of them having outgrown the challenge of the circuits and give the drivers a different challenge in controlling them. Motorcycle development has always had the problem of matching power with useability - remember the early Honda 500 being wrestled round by SMBH?
Both disciplines have also shown up the difference between racing on a circuit of the magnificence of the Isle of Man TT course, where I would doubt that any rider has ever done what he would regard as a perfect lap, and the Scalextric tracks where no more than thousandths of a second separate the lap time of several competitors, because it is so much less of a challenge to the technicians and the rider.
Now if only the organisers of the TT would ban tyres that are not road-legal, and add a penalty of 5 minutes for anyone changing tyres during a race, we might see the TT become the only real test of racing where to come out on top, the rider and the machine have to work on rough and non-grippy, bumpy and smooth, uphill and down, with the best compromise between power, speed, handling and economy - and in any weather!