Jonathan NobleWhy F1's 'misleading' tyre graphic is better than you think The recent introduction of a tyre wear graphic on Formula 1 TV broadcasts appeared to mostly prompt annoyance and confusion. Was that fair? 1573948800 F1

Jack BenyonHow faster new F3 car has changed the face of Macau GP The introduction of the new FIA Formula 3 car as GP3 and European F3 amalgamated was contentious from the outset, and its use in Macau has prompted just as much debate - especially as it became clear just how much faster it was 1573862400 F3

Friday analysisWhy Ferrari is back in business in Brazil By Edd Straw Amid the undercurrent of accusations over its engine and after a lacklustre weekend last time out in America, Ferrari showed revitalised form in practice for the Brazilian Grand Prix. But can it capitalise on its single-lap pace to beat Mercedes? 1573776000 F1

Adam CooperHow Brawn became Mercedes At Interlagos 10 years ago, Jenson Button and Brawn sealed their extraordinary 2009 titles. But the wheels were already well in motion for the team's transformation into the Mercedes squad that dominates today, as Ross Brawn recounts 1573776000 F1

David EvansEveryone loses if Citroen's WRC pullout goes ahead Citroen looks likely to quit the World Rally Championship - a series it dominated for years - with immediate effect. It's a sad end to a poor era for this once-great team, and a massive blow to the series 1573689600 WRC

Lewis DuncanFrom unsettling Rossi to back of the grid ignominy Jorge Lorenzo will be leaving MotoGP at the end of a terrible season - one that does his achievements no justice. Here is the story of his career decline, and why he should be remembered for his highs 1573689600 MotoGP

Oleg KarpovF1 needs radical points change to stop limp endings OPINION: For a third year in a row, the F1 title has been decided earlier. That's only going to happen more often as the calendar grows, so something needs to change 1573689600 F1

Ask Gary AndersonWill Wolff's absence affect Mercedes in Brazil? By Gary Anderson What impact will the absence of Toto Wolff have on Mercedes in Brazil? Should F1 switch to biofuels? Would Eddie Irvine have been a deserving or flukey world champion? 1573603200 F1