After experimenting with old and new specs before the summer break, the team is running the latest iteration for both Grosjean and teammate Kevin Magnussen in low-downforce configuration at both Spa and Monza.
“It’s not a decision, it was a no choice option,” he said when asked by Motorsport.com. “Because the low-downforce package is not runnable on the old car.
“So it doesn’t mean that the old lady is not going to come back in the garage. Actually it’s because we didn’t have a choice, the wings don’t fit on the old car.”
HAAS team boss Gunther Steiner insisted that the latest spec gave the team the best opportunity to address its problems for 2020.
“We think it’s the best going forward, to understand better what not to do for next year,” said Steiner. “That decision we just reached before the break, we met up in Maranello with the aero people and came up with this solution, that this is the best going forward, so we can learn and try to cure our problem that we’ve got.
“This gives us the most stable platform to learn what to do for next year, put it like this. We’re not considering this as a baseline for next year, we’re considering this as a baseline so whichever way we go with the high and low downforce this year, this is the best platform to work with. We think this will be the most competitive one that we can learn the most from.
“We cannot prove it because we have nothing to compare it with, we’ll never have that proof, but at the moment this is our outcome, comparing the two cars, that this spec of car will be the best performing one as we can see it right now.”
Magnussen supports the decision to focus on the latest spec, which he has always stuck with.
“I think we’ve made the decision to stick with the newest package to try to pursue the potential in the package that we see,” said the Dane. “It’s been tricky, it’s shown some weaknesses, but also it’s shown some big strengths.
“So try and pursue that a little bit and invest in the future development while doing what’s best right now. It’s better to work with this package right now and try and make it work than step back and lose ground like that. It’s better to make this work and further the development.
Asked by Motorsport.com to elaborate on the latest spec’s strengths, he said: “The car is very nice to drive when it works, but then it can turn on its head, be a dog to drive as well.
“So when it’s good, it’s really good. So that’s what we want to try and pursue.”
Photo by: Joe Portlock / LAT Images