It was also a solid season from Vettels Ferrari team-mate Kimi Raikkonen who came in third position overall.
The Dutchman won the Austrian and Mexican Grands Prix and eventually finished fourth in the standings.
“If Red Bull’s marriage with Honda provides them with increased torque and horsepower, and if they can still deliver the performance on the car, then Verstappen should be a contender for the title in 2019,” Coulthard told The Telegraph.
“That is what Red Bull will be hoping for, that is what Verstappen will be hoping for, and that, ultimately, is what we all want.”
Max Verstappens glowing second half of the Formula 1 season was enough to see him end 2018 as the grids top performer – perhaps even ahead of champion Lewis Hamilton – according to the Mercedes mans former teammate and rival Nico Rosberg.
Verstappen spilled points as a result of driving errors in five of the opening six races of the season -matters coming to a head when a practice crash in Monaco denied him the chance to compete in a race that Red Bull teammate Daniel Ricciardo won in dominant fashion.
However, the Dutchman responded superbly, taking to the podium in 10 of the subsequent 15 races and showing the kind of performances that have billed him a champion-in-waiting.
Rosberg was among those critical of Verstappen in the early months of the campaign, but hailed his stunning turnaround.
“He showed he learnt from those mistakes at the beginning of the season, the speed was always there,” Rosberg said on Sky Sports.
“Hes done a phenomenal job, the car has improved as well so the package is better. Its been really fun to watch.”
Rosberg believes Verstappen could emerge as a genuine title challenger in 2019, although it all depends on Hondas ability to put Red Bull in position.
“He has to reel that bit a little bit, hes understood that. If hes got the car next year, he can be a contender for the championship.”
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