Charles Leclerc puts the SF90 through its paces on the hard tyre

Lance Stroll at the wheel of the RP19 which is outfitted with a lower T-Wing for extra rear-end stability

A nice long distance shot of Valtteri Bottas as he puts the work in with the Mercedes W10

The Alfa Romeo C38 from behind, note the spoon shaped rear wing which helps to trade some downforce for drag reduction

A distance shot of the McLaren MCL33 with its tail fin on the engine cover that displays Carlos Sainz's number in this instance

The Red Bull RB15 in pre-season trim is clearly an evolution of its predecessor, taking into account the teams move to the Honda powerunit

Ricciardo at the wheel of Renault's RS19 which is not only outfitted with a T-wing but also a slimline monkey seat to recover some rear-end downforce and balance

A fabulous sweeping shot of Kimi Raikkonen in his C38 which wowed everyone when it was revealed owing to their front wing design, which featured a very unloaded outer section - the most aggressive adaptation of such a design on the grid

The McLaren MCL33 has a number of novel features and can be seen here with more heavy duty thermal imaging cameras mounted on the airbox in order that more data can be captured in regard to the tyres.

George Russell - the young Mercedes-backed driver, at the wheel of the Williams FW42 which finally made its way to testing, albeit in a trim that would later need adjusting to meet the FIA's requirements

Haas, now in their fourth season in Formula One, underwent a livery rebrand to accomodate their new title sponsor - Rich Energy.

Romain Grosjean puts the Haas VF19 through its paces as the Frenchman deploys DRS

Like Alfa Romeo, Ferrari too opted for the unloaded front wing design as they looked at ways to work around the new regulations. Note the use of a looped double element T-Wing at the rear of the car too.

Toro Rosso entered into their second year with Honda and joined by their sister team Red Bull they hoped to make sizeable gains throughout the campaign.

Charles Leclerc is outfitted with the medium compound tyres as he looks to collect as much data as possible for the team. Also note how Ferrari returned to the triangular airbox inlet for 2019.

Another shot of Russell in the Williams FW42, the Brit looking to get as much time behind the wheel as possible, owing to the delay in getting their car to testing.

The media scramble to get their shot of both Alfa Romeo drivers and the 2019 car

No markings on the Pirelli tyres indicates the use of a prototype compound by Sergio Perez, who was testing out the limits of his Racing Point RP19

Grosjean leaps from his Haas VF19 - having come to a halt out on track the Frenchman takes an unconventional route out of the cockpit as the ERS is still not safe

Max Verstappen attacks the chicane in his Red Bull RB15 on the medium tyres which are showing signs of graining

A long range shot of the Ferrari SF90, taken atop the garage complex we can see the team have applied flo-viz paint to the floor ahead of the rear tyre and the rear wing.

I offer the following gallery for your perusal with the thanks of fellow reader - Daniel Coyle. Daniel is an amateur motorsport photographer who attended pre-season testing and captured what I think you'll agree are some wonderful images.If you, like Daniel, have anything you'd like to share with the wider Formula One community, be it imagery or written work, then please feel free to get in touch, as I will always try where possible to give others a platform to work from - somersf1@gmail.com