Police said the accident occurred at 7.30am in front of Rajamangala Thanyaburi University in Thanyaburi district.
They said the impact of the collision broke the windshield of the BMW that struck Patthamawadee Prammaroeng and hurled her to the roadside.
BMW driver Thanadej Maksiri, 23, said he was on his way to the university, where he’s studying for a master’s degree, and did not notice the cyclist in his path.
The woman’s relatives told police she cycled to a local community market every morning to buy food.