What is the difference between a carjacking and a robbery?

Defendant next contends that the court erred in failing to stay the carjacking sentence because it was committed incident to the same objective as the robbery. We disagree. It would have been reasonable for the sentencing court to conclude that the objective of the robbery was to obtain the victim's cash and the objective of the carjacking was to escape the scene of the robbery. Because those are separate objectives (cf. People v. Rodriguez (2015) 235 Cal.App.4th 1000, 1006), separate punishment was permitted.