Will Pittenger / Wikimedia Commons
The Circuit de Barcelona-Catalunya acquired its double-barrelled "surname" in 2013, when the nearby city of Barcelona began a sponsorship deal with the circuit.
Before that, it was the plain old Circuit de Catalunya.
Featuring an eclectic mix of corners, the track has long been considered the ultimate test of a car's all-round performance. Though few circuits have seen as many testing laps, the teams will be flying blind a little bit this year—none of 2014's tests to date have been held here.
But while it's a wonderful circuit for testing, it has a habit of producing fairly dull races. Overtaking is very difficult and eight of the last 10 winners have started from pole.
Will "new F1" succeed where old F1 so often failed?
Turns 1, 2 and 3
A lap begins with a long downhill run toward the first corner.
Turns 1 and 2 make up a medium-speed right-left chicane. The first corner (right) is the slower of the two, while the second opens out a little at the exit and lets the drivers get the power down reasonably early.
Turn 3 follows immediately after. It's a very long, uphill right-hander, which in 2013 was taken at full throttle.
That may not be the case this year. Downforce levels have been cut and power delivery is not as benign as it was with the old V8s, so this could prove to be one of the most challenging corners of the circuit to get right.
Turns 4 and 5
Coming out of Turn 3 the drivers enter a tiny straight, before braking for another long corner, the 180-degree medium-speed right of Turn 4. The apex is early, and the turn opens toward the exit.
The track heads downhill along another tiny straight toward Turn 5.
This left-hand corner is tricky because the downhill slope continues all the way through the turn. It's the slowest corner so far, taken at around 100 kilometres an hour.
Turns 6, 7, 8 and 9
Turn 6 is a flat-out left-hand kink just before the braking zone for the next corner pair.
The first of the two, Turn 7, is a medium-speed left, which is downhill at the entry and uphill on the exit. It's common to see drivers running a little bit wide here over the kerbs that mark the inside of Turn 8, a flat-out right-hand kink.
But care needs to be taken, because there's a very nasty sausage kerb waiting for them if they cut it too fine.
The track heads uphill again before the very fast right-hand Turn 9. This one was easy with a little lift in 2013, but this year's cars may find it a little harder.
A medium-length straight follows.
Turns 10, 11, 12 and 13
At the end of the straight is one of the new corners introduced in an apparent effort to improve overtaking opportunities. Turn 10 is a slow left-hander with a long enough braking zone to make passing theoretically possible, but the straight which precedes it isn't really long enough.
Turn 11 is a left-hand kink immediately before braking for Turn 12, a fairly long 180-degree right. The drivers have to wait for what seems like an age before applying full throttle at the exit.
After another tiny downhill straight comes Turn 13, a medium-slow right.
It was introduced for the 2007 race in attempt to improve overtaking opportunities later in the lap, but it still looks like a temporary bodge job.
Turns 14, 15 and 16
The drivers have to quickly get across to the right-hand side of the track before braking for the first part of the final chicane, which also made its debut in 2007.
It's slow and fiddly, first left and then right, and a good exit is critical because the final corner, a right-hander (Turn 16), is flat-out and leads onto the long pit straight.
The pit lane entry is on the inside of Turn 16, and the exit is just before Turn 1.