The bullets glanced ______ the car.

• Glance off:
Meaning - (অস্ত্রে বা আঘাত) দ্রুত ফসকে বা পিছলে বা গড়িয়ে যাওয়া। 
Example Sentence - The spear glanced off his shield.

• Glance at/over/through/round:
Meaning - এক পলক দেখা; পলকে দেখে নেওয়া; glance at the watch; glance over/through a letter; glance round a room.
Example:
- I glanced at the building. 
- I glanced over the paper. 

Source: 
1. Advanced Learner's English Grammar & Composition by Chowdhury & Hossain.
2. Accessible Dictionary by Bangla Academy.