I know that they are somewhat linked, but the width and particularly the length of these cars are a massive issue. I would go so far as saying that it is at least 50-60% of the problem with racing on circuits, particularly the 'classic' ones.
It's not rocket science that the more room there is for the cars, generally the better the racing is (obviously aero is a big problem too). Look at MotoGP...plenty of room for the riders to race around each other and overtake.
If you look at a race from say, 2008, it's quite shocking how much more room there is on the track for the cars.
Sadly I think that as long as we have big batteries - long cars are here to stay. Maybe they should mandate that the batteries are taller instead of flatter...yes it would impact COG, but at least the cars could be shortened. I'm no battery expert so I don't know if something like that is possible.
You accusing the wrong component/aspect of a car for cars to be so long.
Aero is the primary reason why the cars are so long.
Look how narrow the bodywork parts above the floor are. The floor is the widest part of the car, with the bodywork above it as narrow as possible.
There is area aboven that floor to be used if needed/wanted, yet no-one does it. In fact, the opposite, every cm the bodywork can be lowerend and narrowed is used if possible.
And if the opportunity to go wide is not used the only option is: length.....
Let's take a 1979 Williams FW07, the best wingcar of the year.
Measure the distance between rear axle and the backside of the cockpit (thus including the fuel cel..
I think it will be more than possible to squeeze all the components on the current cars easly within this same distance as valid for the FW07.
But it would force the teams to make sidepods that come close to the width like onto that very same FW07.
A horror for the aero guys to work with. They had to start all over again.
Anyway, it ain't the batteries that make the cars so long: Aero and the improved highspeed stability of a longer wheelbased car compared with a short wheel base car, that are the reasons why we have the current cars that are longer that the largest Mercedes (& Maybach)Saloons, Rolls Royces and Bentleys and the likes.