In April 1975, our court initially concluded in Schwalbe v. Jones (1975) (Cal.), that this statutory provision violated the constitutional equal protection guarantee. Thereafter, however, we granted a rehearing in Schwalbe and, upon rehearing, a majority of the court sustained the statute against constitutional challenge. (Schwalbe v. Jones (1976) 16 Cal.3d 514 [128 Cal.Rptr. 321, 546 P.2d 1033].) After a careful reexamination of the issue, we have concluded that our original constitutional determination was correct and that, under the appropriate governing equal protection standard, the disparate treatment mandated by section 17158 cannot be constitutionally sustained. Since the trial court in the instant case proceeded upon the assumption that section 17158 was in fact unconstitutional, we conclude that its judgment should be affirmed.
1. The facts
On February 13, 1971, plaintiff Gertrude Cooper, age 64, was seriously injured in an automobile accident while riding as a passenger in her own car. At the time of the accident, defendant Claude Lewis Bray, age 65, an employee of the service station where Miss Cooper regularly took her car for servicing, was driving the vehicle. Miss Cooper had been a customer of the Colonial Oil (Arco) service station where Bray worked for five or six years prior to the accident, and on a number of occasions Mr. Bray had picked up Miss Cooper’s car at her residence (located a block or two from the station), had driven it to the station for repairs^ and had then returned the car to her home. On two or three occasions, Mr. Bray had thereafter driven the car back to the station with Miss Cooper riding as a passenger, and Miss Cooper had then driven the car back to her own home alone.
On February 12, 1971, the day before the accident, Miss Cooper called the station because her car had stalled as she entered the driveway of her residence. She arranged to have the vehicle picked up, repaired and returned to her home at 8 a.m. the following day.
The next morning, Mr. Bray called to tell Miss Cooper that her car was ready and that he would return it to her home. A few minutes later, Mr. Bray drove into Miss Cooper’s driveway and told her “to get in there, I’m going to drive myself back to the station.” Miss Cooper entered the passenger’s side and Mr. Bray drove toward the station.
Although the above facts were uncontested, the testimony at trial was in conflict as to the events immediately preceding the accident. Miss