Sebastian Vettel put Ferrari at the top of the timesheets for the second straight day with Robert Kubica and Charles Leclerc producing notable performances as the Pirelli tyre test came to a close in Abu Dhabi.
The German four-time world champion would set a 1:37.551s in the morning on the HyperSoft tyre, two-tenths clear than what teammate Kimi Raikkonen managed on Tuesday, as he got his first look at the new 2018 compounds.
Vettel was also one of eight drivers to surpass the 100-lap mark on the final day of running this year, while some teams opted to split the track time between their respective drivers.
That was the case at Williams with Sergey Sirotkin doing the long run work that Robert Kubica did on Tuesday, but there was more interest in his appearance for the final two hours of action.
It would mark the first time a direct comparison could be drawn between the Pole and would be teammate in 2018 Lance Stroll, as they completed the same program of shorter runs on the softer compounds.
The result would be interesting as Kubica went a tenth of a second faster than the time the Canadian managed on Tuesday with a 1:39.485s, which would put him seventh overall on the timesheet.
The other interesting comparison was between F2 champion and likely 2018 Sauber driver Charles Leclerc and his possible teammate Marcus Ericsson with the Monegasque almost a second faster than the Swede had gone on Tuesday, albeit still only 11th overall.
The Ferrari Academy member also completed the most laps of anyone on Wednesday with 148 tours of the Yas Marina Circuit.
Of the other drivers, Valtteri Bottas was second on the day for Mercedes but almost a second slower than pacesetter Vettel, the Finn was a quarter of a second ahead of Max Verstappen in third, but the Dutchman would manage an impressive 132 laps in the Red Bull.
Force India split their day between their race drivers and it would be Sergio Perez in the afternoon who led teammate Esteban Ocon by over three-tenths as they finished fourth and fifth respectively.
Carlos Sainz was sixth for Renault ahead of the aforementioned Kubica as McLaren's Stoffel Vandoorne was two seconds faster than third driver Lando Norris, in eighth and 12th respectively, as the British team again ran two cars following the cancellation of a test planned for Brazil. Kevin Magnussen was ninth with Sirotkin completing the top 10 after his stint in the Williams.
At the bottom of the timings sat the two Toro Rosso drivers of Brendon Hartley and Pierre Gasly after sharing driving duties, both completed just over 60 laps each.
McLaren set to confirm Carlos Sainz as A
Verstappen undeterred by high Honda comp
Williams relying on Paddy Lowe to turn a
Haas boss Steiner: Mercedes teams can't
Carey willing to use Miami-style risk-sh
Red Bull's infamous 'multi-21' incident
Fernando Alonso to leave F1 at the end o
Gasly keen to seize Red Bull opportunity
Villeneuve: Stroll should join Force Ind
Daniel Ricciardo: Why Renault was the on
Ricciardo didn't want to play a 'support
Perez to consider options but wants Forc
Marko rejects claims Verstappen influenc
Mercedes keen to match Ferrari power but
Red Bull rule out Alonso, McLaren CEO co
Szafnauer delighted as Force India rescu
Carey: 'Hero' F1 drivers making sport 'm
Toro Rosso sure Honda will power Red Bul
Hulkenberg aware of 'challenge' against
Hamilton insists Ferrari faster but perh
Force India development on hold during a
Williams in talks to enhance Mercedes pa
Verstappen: Non-works team status puts R
Red Bull boss Horner thought Ricciardo '
Haas chief Steiner suggests F1 stewards
Doctors 'very, very happy' with Lauda's
Verstappen blocking Sainz promotion to R
Brown: McLaren's lack of competitiveness
Hakkinen: Hamilton & Vettel comparable t
Robert Kubica reflects on his first year
Daniel Ricciardo leaves Red Bull for Ren
New Ferrari CEO offers mixed signals on
Ex-McLaren tester De la Rosa doesn't wan
Mercedes eyeing Williams seat for Russel
Renault blocking Force India aid over wo
Daniel Ricciardo certain of new Red Bull
Bottas 'wasn't fussed' about hitting Vet
Bahrain not among circuits being conside
Williams, Force India reveal first 2019
Ericsson has raced without a drink 'for
Liberty proposal to help Force India rec
Abiteboul: Renault stopped listening to
Alonso hails McLaren strategy after birt
Gasly hoping P6 in Budapest a reminder t
Hamilton: Vettel pit-stop error likely s
Ricciardo ready for summer after finishi
Wolff upsets Bottas with 'wingman' comme
Verstappen & Red Bull livid with Renault
Vettel clears Bottas in incident: 'He ha
Hungarian GP: Hamilton eases to sixth Bu
Vettel relaxed but admits Ferrari 'missi
Ricciardo defends Red Bull decision-maki
Hungarian GP: Hamilton claims pole as Fe
Hungarian GP: Vettel remains ahead, Merc
Toro Rosso's Key will not be released to
Force India enter administration after P
Hamilton admits Mercedes' lack of pace '
Ricciardo wary single-lap pace could hur
Vettel claims qualifying is key as he lo
Hungarian GP: Vettel beats the Bulls in
Hungarian GP: Ricciardo edges Vettel to
Villeneuve: Hamilton 'confuses F1 with H
Key leaves Toro Rosso, set to join McLar
Force India would consider Renault offer
Red Bull hopeful Ricciardo will avoid Hu
Hamilton used hostile Hockenheim atmosph
Ex-Ferrari chairman Sergio Marchionne di
Lawrence Stroll poised to buy Force Indi
Miami holds off F1 Grand Prix ambitions
Nico & Max differ on impact of Vettel's
Wolff: Mercedes only favoured the lead d
Hartley hails teamwork as Gasly rues gue
Hulkenberg had Brazil 2012 flashbacks en
Grosjean delighted with late Hockenheim
Ricciardo "won't remember" German GP aft
Raikkonen: Ferrari wasn't clear with Vet
Bottas: Mercedes team order made 'comple
Vettel rues 'big impact' of a 'small mis
Hamilton hails 'tremendous' win after su
Lewis Hamilton victorious from 14th as r
German GP: Vettel beats Bottas to home p
Marchionne likely to step down as Ferrar
Alonso to consider McLaren future during
Red Bull expect Ricciardo deal to be a f
German GP: Leclerc leads rain-hit Practi
Stroll 'wants to do what's best' for his
Webber: Vettel still susceptible to Baku
Verstappen: Red Bull pace better than ex
Hamilton admits tyres the main focus aft
German GP: Verstappen gives Red Bull Fri
Red Bull: Honda partnership has more pot
Magnussen: Alonso radio theatrics akin t
Vettel plays down "human" Hamilton react
F1 set to overhaul in tyre design as par
FIA confirm 20-place grid penalty for Ri
German GP: Ricciardo pips Hamilton in Pr
After Hamilton, Bottas is now confirmed
Vettel sees "no rush" in promoting Lecle
Hamilton reveals rival team interest, ex
Hamilton & Mercedes confirm two-year con