hi everyone, i'm having some problem with my City 4g...

Yesterday, i use 7-speed in highway and suddenly felt the car is underpower and the rpm cannot exceed 4000...

And when i brake in roundabout, the car just dead and cannot start, whenever turn the ignition to start will fell the car is shaking..

Send to workshop ady and they said will need 2-3days for inspection...
anyone had experienced this b4?really worried about the car..