Paul Walker was 40 in Furious 7 when he played the character 'Brian O'Conner'.
That was over 9 years ago in 2015.
In 2013 he died aged just 40, starring in 36 films in his career, 2 of those after Furious 7 was first released. If he were alive today he would be 50.
In Furious 7, I think Paul Walker looks: