Why do F1 winners get 25 points? Why do tyre-smoking lock-ups happen? Why do F1 cars change for every race? This week on Formula Why we're answering some of the questions you've sent in to Why@F1.com so far. Christian Hewgill and Katie Osborne are joined by former Aston Martin Head of Strategy Bernie Collins and F1 Correspondent and Presenter Lawrence Barretto to explore the whys, the hows and the whats. Along the way we learn why F1 cars haven't always had four wheels, why tyre warmers aren't just for warming tyres and why Lawrence takes an extra suitcase to every Grand Prix.

Got a question about how F1 works? We'd love to hear it. Write it or record it as a voice note, then send it to Why@F1.com and we'll include it in a future episode.

Check out other episodes of Formula Why. Scroll through the feed or use the links below:
'Undercuts', red lights + F1 jobs - Your Questions Answered
Why are pit stops so important?
Why do F1 teams need simulators?
Why is racing in the rain so difficult? with Mika Hakkinen + Haas race engineer Mark Slade
Why do F1 drivers need to be so fit? with Alexander Rossi + Vettel's former trainer
Why does the USA have 3 F1 races in 2023?
Why is F1 Sprint such a challenge? with Kevin Magnussen

For in-depth interviews with F1's biggest stars, listen to F1 Beyond The Grid. For race previews and reviews, head over to F1 Nation.

Tyres, F1 points + car set-up: Your Questions Answered by Bernie Collins + Lawrence Barretto