The new McLaren-Honda partnership got off to a difficult start at the first pre-season test, with power unit issues limiting the team to just 79 laps. With the new partnership with Honda proving such a big challenge, Alonso says McLaren will not be able to set itself any targets until it has seen its competitiveness over the opening few races.
"We need to see how competitive we are," Alonso said. "We just did one test [at Jerez], and we were not running with the full potential of the car. We were just testing the first days of the car.
"I think once we have the full potential, once we are in the second or third race and we see how fast we are, we'll put a target for this first year.
"We want to win the championship. We don't know if it will be the first year, the second or the third – hopefully as soon as possible - but this is something that we want to achieve.“
The final two pre-season tests take place at the Circuit de Catalunya from February 19-22 and February 26-March 1, with the first race in Melbourne on March 15.
Click here for the full final day gallery from the Jerez test