Welcome to episode 44 of the Lovecars On The Grid pocast! 
Our hosts, Paul Woodman and Tiff Needell bring us another motorsport roundup from the past week.  
This week, we have two new World Champions! But we start with paying our respect to Coy Gibbs, the executive for Joe Gibbs racing, who sadly passed away this weekend. His death was less than a day after his Son won the Xfinity Series Championship.  
In Formula 1, Christian Horner is in the news again, claiming that there was a leak from Red Bull to the FIA. We've had lots of PR from Formula 1 drivers out in Las Vegas for the race in Nevada next year.  
Elsewhere, there's a debate with Pirelli over whether tyre blankets should be continued. Pirelli have said that first laps out of the pits will be slower, but other race series don't use tyre blankets, so are they needed in Formula 1?  
The Moto GP riders were out in Valencia this weekend, with a win for Suzuki rider, Alex Rins, in Suzuki's last ever race in Moto GP. The Championship win went to Francesco Bagnaia, taking the title from Francesco Bagnaia.  
In Moto2, Spanish rider, Pedro Acosta took the win and became rookie Champion of the year, with the overall Championship going to fellow Spanish rider, Augusto Fernandez.  
Joey Logano was crowned this year's NASCAR Champion at Phoenix Raceway in Arizona.  
Next week, we have the Brazilian Grand Prix in Sao Paolo. We have the World Rally Championship final in Japan and the WEC final in Bahrain. The penultimate round of World Superbikes is also taking place in Indonesia, and let's not forget the Race of Remembrance in Anglesey!