"The E2 is superior to the E , it’s the evolution and upgrade to the E series."
The misunderstanding began because you referred to this model as the 'superior E'. Why? Because you did not use a capital S on the front of 'superior' which you should do when using a word as a proper name. Using it without a capital S means it just looks like an adjective, i.e. a 'describing word'.
The misunderstanding began because you referred to this model as the 'superior E'. Why? Because you did not use a capital S on the front of 'superior' which you should do when using a word as a proper name. Using it without a capital S means it just looks like an adjective, i.e. a 'describing word'.