There doesn't appear to be jumper type terminals on the power station. And this line from the manual basically says the power station won't deliver enough starting amps to start a car.
"The power station is not intended for any use other than charging USB electronics
(up to 2.1 Amp for each USB port) or AC devices (up to continuous 2000W for 3 AC
ports combined). Any other use may result in system shut down or even damage."