The Volkswagen Cross Polo and Toyota Etios Cross are both great cars, but when it comes to diesel engines, the Volkswagen Cross Polo has a more powerful engine, making it a better choice for those who need a powerful engine. Furthermore, the Volkswagen Cross Polo has more features, such as cruise control, a panoramic sunroof, and an upgraded infotainment system. 
On the other hand, the Toyota Etios Cross has a more efficient engine, making it a better choice for those who are looking for a more economical option. Additionally, the Toyota Etios Cross is also equipped with a rear parking camera, which is an added bonus. Ultimately, both cars are great options, but the Volkswagen Cross Polo is the better choice for those who need more power and features.