The guide also recommends that all seniors, regardless of their health issues, look for vehicles with solid safety features and a proven safety record. Crash test and rollover ratings are available at Safecar.gov and IIHS.org.

Other safety features to look for include antilock brakes, head restraints to reduce the risk of neck injuries, dynamic stability control to help prevent loss of control in a turn, and side and dual-stage or dual-threshold air bags that inflate based on the severity of the crash.

However, AAA and NODTRC also stress that there is no one-size-fits-all standard when it comes to seniors and the cars they drive.

"As we age, each of us ages differently, so the vehicle that works best for us is going to be different for each," Nielsen said. "Each driver should find the car that suits them absolutely the best."

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