Dacia Sandero Eco2 vs Chevy Aveo LPG

Hello guys. I’m looking for a new mobile kit and have it on the two above mentioned “limited”. To the selection stand for me: Dacia Sandero 1.2 Eco2 gasoline with 75 hp, price 9.500,00 Euro Dacia Sandero 1.5 Eco2 diesel with 68 hp, price 11.500,00 Euro Chevy Aveo 1.2 (base) LPG, price 9.990,00 Euro Chevy Aveo 1.2 (LS incl. climate) LPG, price 12.790,00 Euro. I strongly tend to the Chevy base version for around EUR 10,000 because I have the only useful extra d the higher quality equipment (the air conditioning) is actually no EUR 2,800 value. I think on the engine side all possibilities should not pull the butter off the bread. Therefore, it is mainly about the current maintenance costs (use almost exclusively highway approx. 55 km/day). To which would you advise me? How about the consumption of the Eco2 diesel? Have already talked to the Chevy dealer, who said there is no further discount (since already the car gas system/ This can’t be the last word, how are your experiences in this regard? At least there should be a transfer and a guarantee extension. I’ve already looked at the Chevy in the car dealership and I really like it. The Sandero is on this week. I will probably do test drives next week as far as possible. Thank you in advance.