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

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

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

Autosport EngineeringWhy motorsport's latest innovation can emulate Formula E By Lucas di Grassi Extreme E, the new electric off-road series, is heading into unchartered territory - literally. But our columnist argues that it can take inspiration from Formula E's success and even match it for impact 1573603200 Engineering

David EvansThe agonising situation the WRC faced in Australia As bush fires devastated the region surrounding the Coffs Harbour area hosting Rally Australia, WRC took the decision to cancel the event. But why did that decision take so long? 1573603200 WRC