The rear seatbacks can be folded down to increase cargo space.
See Rear Seats.
Chevrolet Sonic. Additional Storage Features
Cargo Cover (Hatchback)
Warning
An unsecured cargo cover could strike people in a sudden stop or turn, or
in a crash. Store the cargo cover securely or remove it from the vehicle.
The cargo cover ...
Chevrolet Sonic. Online Owner Center
Online Owner Experience (U.S.) my.chevrolet.com
The Chevrolet online owner experience is a one-stop resource that allows interaction
with Chevrolet and keeps important vehicle-specific information ...
Seat Ibiza. Diesel engine 1.9l TDI 96 kW (131 bhp)
General engine data
a) Cetane-Number (cetane index) = Measure of the combustion power of the diesel.
Performance figures
Weights
Trailer weights
Engine oil capacity
...