Fans of the Williams Formula 1 team may well be getting excited as we come towards the end of pre-season testing, and perhaps with good reason.
The first two tests of 2015 have been solid, but deliberately unspectacular for the Grove-based F1 squad. It has quietly gone about its business, focusing on the basics of the FW37's set-up, trying to improve areas of operational weakness last year (such as pitstops), and putting plenty of mileage on a Mercedes engine that must do more races this year before it can be changed without incurring penalty.
Meanwhile, the world champion works Mercedes squad has caught the eye with ominous long-run pace and frighteningly fast laptimes on the medium-compound Pirelli tyres. At last week's Barcelona test, new Mercedes customer Lotus set the ultimate pace, thanks to Romain Grosjean's last-day flier on supersoft rubber, but Nico Rosberg was less than 0.3s slower in the W06 - on mediums.