Sebastian Vettel's testing weekend didn't exactly go to plan as Aston Martin struggled with reliability issues, but the German believes it's still early to decipher what it all means.
The German was forced to watch on during the final day of testing as a power unit problem sidelined him. As a result Vettel was able to make some early impressions about the rest of the grid, pointing out Red Bull's impressive form while noting the midfield looks to be a lot closer.
"It's all relative," Vettel told F1 TV. "There are a lot of new things and in fairness, it's hard to say at this stage how much [was related to] conditions.
"The first two days were quite brutal and today [Sunday] was better for as I was in the afternoon session and things calmed down. It will be difficult to filter all the impressions because the tyres are different, the cars have changed and I'm sure lots of the experiences I've had, others have as well. That's where it's all relative for performance.
"From what I've seen it looks to be very close, it would be good if it were like that. Red Bull look very strong, Mercedes have everything to be at the top and it looks like all the midfield has caught up."
Vettel ended the final day of testing with 57 laps completed compared to Lance Stroll's 80, and he knows there is more to be learned about his new car when racing gets underway in Bahrain on March 28.
"It will be racing and I look forward to it," Vettel added. "Testing isn't that exciting and obviously if everything is new, we would have liked to have more days considering the hiccups we had.
"It won't be like testing, it will still be racing but we will have to learn a lot, but it won't just be us."