Testing times and lap counts are one way to get an idea of where each team is before the start of a new Formula One season; news stories and rumours are another.
But there's another way, and it's often the most accurate of the lot—a look at the betting odds.
They're certainly not foolproof (nothing is in F1), but with so much at stake the bookies can't afford to get it badly wrong. Their inside sources and experts are top notch, and they usually paint an accurate picture.
Here are some key betting lines, and what they tell us about the drivers' and teams' chances.
All odds are in the fractional format commonly used in the UK—the first number is the winnings (plus your stake) you would receive for staking the second number. For example, if the odds were 5/1, and you staked £1, you would get £6 back if you won.
All odds are taken from Oddschecker's comparison page, and are correct at the time of writing.