2005 Nissan Maxima brakes problems

"tamara inflators" seat belts didn't lock or light did not come on. Smashed body all the way to back seat bottom to ground. Engine was idling very high felt/sound as if we were going 60 but only was going 40. No air bags came on. Brakes grinding. Back window blew out and tires flat in back.. Windows slow on drivers side. When the sheriff tahoe hit us at 80MPH on u.s.

Prior owner reported issues with ABS rear sensor, and having to disconnect fuse. Vehicle was taken to nissan dealer for service weeks ago, I authorized diagnostic fee and was notified that computer reports rear right ABS sensor being defective and needing to be replaced at a total cost a little over $550. Driving from dealer, the vehicle has reduced acceleration out of nowhere to a point where I have not driven car until I proceed with repairs at dealer. Since re-connecting fuse that powers ABS...