That exists in Switzerland for a number of tunnels, but passengers stay in their cars, which is presumably not what you had in mind: https://www.bls.ch/en/fahre

That exists in Switzerland for a number of tunnels, but passengers stay in their cars, which is presumably not what you had in mind: https://www.bls.ch/en/fahren/unterwegs-mit/autoverlad https://www.bls.ch/en/fahren/unterwegs-mit/autoverlad