On Audi's official website I found out that there are two options in terms of the engine for A3 E-Tron 1.4 TFSI Progressiv S tronic and 1.4 TFSI Technik S tronic. However, so far I can't find any differences between two of them. I compared technical characteristics provided on the same page, but they are the same. It seems like these two are absolutely the same engines which come in two different trim levels, that's why they have different names. Can you make it clear for me? I don't understand why there is a $5,000 difference between them without any logical explanation?