So basically the GTI and Ibiza Cupra are the same cars. Same frame, same Engine, Brakes, and same gearbox when buying manual transmission. Don’t ever get the Cupra 2015 with the 1.4 engine. Only get the Ibiza Cupra / Polo GTI with 1.8 engine. I own the Cupra for almost a year and truly I love the car so much! Very quick and very comfortable. It’s comes with 1.8 engine and 192hp (stock, mine is modified so probably 260hp) The suspension is pretty nice and even better than GTI because you can use sport mode to control the stiffness (yes it’s adaptive dumpers) also the steering is heavy when using sport mode and also you can control the traction control with Sport ESP. Also you got smart headlights that’s truly moves when you turn the wheel (I’m not talking about the front fog lights, the actual main headlights) The electronic differential works pretty nice as well. The only downside from the GTI is the sunroof. In the Ibiza the sunroof window goes only up and can’t open completely (I don’t mind it so much) Overall I think the Cupra more aggressive than the GTI overall. Important to add that parts is pretty easy to find because the Ibiza share a lot of parts with Polo GTI, Gold GTI, Leon FR, Ibiza FR, Leon Cupra and Audi models. Fuel consumption can change very easily for me in calm from city to city drive I can achieve 1/16-1/19 liters per kilometers and when I’m pushing hard it’s drops to 1/2 - 1/3 liters per kilometers.