Sports Mole rounds up all of the latest news regarding Formula 1 on Tuesday, July 21.

Tuesday morning's Formula 1 news roundup:

Vettel 'regrets' how Red Bull tenure ended

Sebastian Vettel has admitted he regrets the way in which he left Red Bull at the end of a tough final season with the energy drink team in 2014.

Rumours in the past days suggested one of the biggest obstacles standing in the way of a return to Red Bull for Vettel in 2021 is his falling out with team owner Dietrich Mateschitz some years ago.

According to the rumour, the quadruple world champion signed his 2015 deal with Ferrari without actually informing the Austrian billionaire ahead of time.

Vettel told Sky Deutschland that he doesn't regret leaving Red Bull because Ferrari "had always been a dream".

"I was fascinated by Michael (Schumacher) in the red car so I was attracted to the red-head woman for the right reasons," he laughed.

"What I do regret a little is the way it ended with Red Bull," said Vettel.

"We didn't finish on a high, which is just what the sport is like sometimes, but more than that it was a bit weird with the contracts - what was I allowed to say, not allowed to say.

"That was a bit uncomfortable," he added. "Looking back, I have to say I regret that. We had a fantastic time together, we achieved so much and had fun, so I should have listened to my gut more in terms of how that was done."

Hamilton hits back at F1 legends over racism

Lewis Hamilton has hit back at F1 legends Mario Andretti and Sir Jackie Stewart over their recent criticism of the Mercedes driver's Black Lives Matter activism.

As the six-time world champion spruiks his anti-racism message within the F1 paddock, 1978 title winner Andretti suggests that Hamilton is actually "creating a problem that does not exist".

Hamilton, 33, responded on Instagram.

"This is disappointing but unfortunately a reality that some of the older generation who still have a voice today cannot get out of their own way and acknowledge there is a problem," he said.

"This is plain ignorance but that will not stop me from continuing to push for change. It is never too late to learn and I hope that this man who I've always had respect for can take the time to educate himself," Hamilton added.

As for triple world champion Sir Jackie Stewart, he recently said of the anti-racism campaigning: "I don't think there's as big a problem as there might seem".

"Again, another one," Hamilton responded. "Just disappointing."

More transfer news from Formula 1:

Father defends Magnussen over illegal radio penalty
Kevin Magnussen's father has leapt to his defence after the Haas driver was penalised for receiving illegal radio instructions in Hungary. Read more.

Montezemolo 'very worried' about Ferrari's future
Ferrari must take "courageous decisions" or risk losing more than just the 2020 world championship. Read more.

Vettel says Mercedes cruising to 2020 title
After just three races in 2020, Mercedes does not appear to have a viable challenger for the world championship. Read more.

Perez doubts Racing Point will oust Lance Stroll
Sergio Perez admits it is "obvious" that if Racing Point needs to make room for Sebastian Vettel next year, it is his seat that will be vacated. Read more.

Dortmund's Bellingham welcome, Kane's baby news - Monday's sporting social
A future England striker? England captain Harry Kane and his wife are having a boy. Read more.

Lewis Hamilton: 'Absence of fans will cloud British Grand Prix'
Lewis Hamilton's quest to win his home grand prix for the sixth time in seven seasons will be played out in front of empty grandstands. Read more.

Lewis Hamilton accuses Formula One of lacking leadership in tackling racism
Lewis Hamilton took the knee ahead of Sunday's Hungarian Grand Prix. Read more.

No 'fundamental' problem with 2020 Red Bull - Horner
Red Bull's 2020 car is not fundamentally flawed. Read more.

Racing Point 'interested' in signing Vettel - boss
Racing Point has declared its clear interest in signing up Sebastian Vettel for 2021. Read more.

'Too early' to consider 2021 F1 seat for Schumacher - Binotto
It is "too early" to consider whether Mick Schumacher will be promoted into Formula 1 for 2021. Read more.

Ferrari must have 'courage to make changes' - Binotto
Ferrari will take a sharp turn away from its planned "development path" for the 2020 car, after being lapped by race winner Lewis Hamilton in Hungary. Read more.