 Complete the following phrase:  In February 2018, Haas unveiled their new car, the VF-18, although some competitors called for an investigation due to its resemblance to the previous years Ferrari, the SF70H. Following a strong showing during winter testing, Haas again had a competitive weekend in Australia, scoring the teams best-ever starting grid positions with Magnussen starting 5th and Grosjean 6th, respectively. During the race, they were running in 4th and 5th positions which would have given them their best ever result and half of their 2017 points tally, but both cars retired one lap after their respective pit stops. They would eventually match this 4th and 5th-place result in 