I can't believe I hadn't known this earlier. This apparently happened in the summer, on June 15. 

Anyway, this is just really sad and kinda emotional to do. Bob was a ginger cat in London who James Bowen had found. At the time, James was a recovering addict, he first met Bob in 2007 when he found him abandoned and injured. James took care of Bob who in turn gave him a reason to get up each morning. They quickly became inseparable, busking and selling The Big Issue on the streets of London. In 2012 Hodder & Stoughton published James' first book, A Street Cat Named Bob, telling his and Bob's extraordinary story. The book was a publishing sensation, selling - along with its sequels The World According to Bob, A Gift from Bob and The Little Book of Bob - more than eight million books in more than forty languages, and was made into the film in 2016 starring Luke Treadaway as James. Bob appeared in the film as himself and will appear in a sequel, A Gift from Bob, later this year. As James and Bob continued to find fans all over the world, Bob led an incredible life meeting well-wishers at book signings, travelling the world and coping with feline fame. He was an extraordinary cat who will be greatly missed.

 I remember watching A Street Cat Named Bob and I reading the book. I loved them both and I loved Bob, and I can't imagine how James must've felt the moment when the car took his poor cat's life away. Bob was special, he was special to me, to everyone, and especially to James. There is no cat in the world who can take his place. 

Here's a beautiful song from the movie

https://youtu.be/MSr0R6z7ORQ

James Bowen says "Bob saved my life. It's as simple as that. He gave me so much more than companionship. With him at my side, I found a direction and purpose that I'd been missing. The success we achieved together through our books and films was miraculous. He's met thousands of people, touched millions of lives. There's never been a cat like him. And never will again. I feel like the light has gone out in my life. I will never forget him."  

He lived the best life a cat could. You will be missed Bob. Rest in Peace.