Mercedes will send a Formula One car to be sent to the home of a terminally ill boy who Lewis Hamilton says had inspired him to with the Spanish Grand Prix.

Moments after recapturing the championship lead from Valtteri Bottas with his victory at the Circuit de Catalunya, an emotional Hamilton dedicated his triumph to Harry Shaw – a five-year-old, diagnosed with a rare form of cancer.

Hamilton had been alerted to Harry’s plight leading up to Sunday’s race after Mercedes showed him a video of support sent in by the youngster from his hospital bed.

Harry has since been transferred to his Surrey home for his final days.

And, in a touching gesture by the sport’s world champions, Press Association Sport has learned they have flown in a Mercedes F1 car to Harry’s house.

Harry will also be presented with Hamilton’s winning trophy from the Barcelona race.

Ahead of Sunday’s race, Hamilton posted a heartbreaking 17-second video to his Instagram account which he had received from Harry.

Wearing a Mercedes cap, and lying next to a signed Hamilton picture in his hospital bed, Harry said: “Hello Lewis Hamilton. Good luck winning the race in Spain and thank you for all of the gifts. Lots of love from Harry and goodbye”.

Hamilton, his voice croaking, said: “Today, I was just super-inspired by this kid that sent me a message.

“He was my spirit angel.”

Harry’s parents, Charlotte and James, have set up a charity page to raise money for research into the disease – Ewing’s sarcoma.

They have so far raised more than STG15,000 ($A28,000).