DOVER, Del. — Jimmie Johnson has a winless streak that’s hit 88 races. He missed the playoffs for the first time in his career and lost any shot at winning a record eighth NASCAR championship.

The driver who once seemingly won at Dover International Speedway each time he grabbed the wheel is now a 30-1 longshot to do it again. Johnson is on his second crew chief of the season — and has faced hundreds of questions about his future.

How much longer will you drive, Jimmie?

Does the competitive fire still burn as the losses mount for a 44-year-old driver on the short list of NASCAR’s greatest of all time?

Johnson each week publicly states he’s no closer toward deciding his racing future than he was the week before.

Hendrick Motorsports announced Friday that Johnson’s primary sponsor — the company that infuses the team with needed cash — had signed an extension to stay on the No. 48 Chevrolet for three years through 2023.

Johnson is only signed with Hendrick through 2020.