Unless the point is to explore another path history may have taken if Ferdinand Porsche would have focused in 1898 on battery development:
The Egger-Lohner was a carriage-like car driven by two electric motors within the front wheel hubs, powered by batteries. This drive train construction was easily expanded to four-wheel drive, by mounting two more electric motors to the rear wheels, and a four-motor example was ordered by Englishman E. W. Hart in 1900. In December that year, the car was displayed at the Paris World Exhibition under the name Toujours-Contente. Even though this one-off vehicle[14] had been commissioned for the purposes of racing and record-breaking, its 1,800 kg (4,000 lb) of lead–acid batteries was a severe shortcoming . Though it "showed wonderful speed when it was allowed to sprint",[citation needed] the weight of the batteries rendered it slow to climb hills. It also suffered from limited range due to limited battery life.
yes, but then you please drive an egger-lohner and not an e9,....alles in ordnung !
As villa adriana in Tivoli (II century), had excellent heating system for winter, far more unefficient than the XII century cathedrals, but a marvel in its time, it is one or the other...