I might be misremembering, but I think any team who hadn't done a livery reveal prior to Barcelona was asked to run a testing livery. So that leaves McLaren, Cadillac, Aston Martin, Williams who have a test livery for this event
I might be misremembering, but I think any team who hadn't done a livery reveal prior to Barcelona was asked to run a testing livery. So that leaves McLaren, Cadillac, Aston Martin, Williams who have a test livery for this event