Despite competing against stronger teams, he was 3rd in the Championship, when at the start of the race at EuroSpeedway Lausitz he was hit by another car and propelled into a wall, prematurely ending his season and breaking his back at the same time.

He entered the Macau F3 street circuit race in November 2012 where he and his team, Eurointernational, used a brand new car, but with no time to test beforehand, the results were disappointing.

However, in the dying minutes of the session Blomqvist was unable to get another clear lap, losing pole position and ending up sixth.

After a thrilling season racing with the cream of junior motorsport's talent, Blomqvist managed to finish 2nd in the championship, despite incurring engine change penalties.

Although Ocon had damaged his suspension at San Francisco Bend, he managed to go on, but a powerless Blomqvist was driven into the barriers, ending his race.

On 2 February 2015, it was announced Blomqvist had secured a BMW DTM drive for multiple seasons, replacing the spot left vacant by the departure of Joey Hand.

Despite a strong debut in Marrakesh, finishing in 8th position, his results were not considered good enough by the team & he was replaced with Stéphane Sarrazin for the final four races of the season.

Blomqvist returned to the Formula E paddock for the 2019 Berlin ePrix, where he acted as a TV pundit, in place of the regular Dario Franchitti, who was attending the 2019 Indy 500.

[4] Blomqvist was then given a full-time seat at the NIO 333 FE Team for the 2020–21 Formula E World Championship, driving alongside fellow Briton Oliver Turvey.

[6] In the 2018 Blancpain GT Series Endurance Cup, driving a BMW M6 GT3 for Team Walkenhorst Motorsport, Blomqvist, and teammates Philipp Eng and Christian Krognes won the 2018 24 Hours of Spa.

During the 2021 FIA World Endurance Championship, Blomqvist, ex-teammate at Carlin in F3 Sean Gelael, and ex-Formula 1 driver Stoffel Vandoorne were driving an Oreca 07 for Jota Sport team, in the Le Mans Prototype2 class.

Blomqvist will return to the 2023 FIA World Endurance Championship with United Autosports in the LMP2 category alongside Oliver Jarvis and Josh Pierson.

Blomqvist stated that a large part of his decision to take the drive was the presence of Jarvis, with whom he won the DPi class title in the IMSA SportsCar Championship the previous year.

[8] Blomqvist made his debut in the 2018 IMSA SportsCar Championship at the wheel of a BMW M8 GTE, at Watkins Glen International, in a one-off race appearance, and finished in a respectable 8th in the GT Le Mans category.

Following his Formula E campaign, Blomqvist was announced in November 2021, as one of the driver's for Meyer Shank Racing in the 2022 IMSA SportsCar Championship, driving the Acura ARX-05 along with teammate Oliver Jarvis.

This would secure him and Jarvis the title that season For 2023, Blomqvist was retained by Meyer Shank Racing, this time driving the brand new Acura ARX-06 in the revived GTP class,[9] being partnered by Colin Braun.

In his first Indycar race, Blomqvist qualified 20th out of 27 cars, but crashed out on the first lap as he was pushed into the wall by Ryan Hunter-Reay and Jack Harvey.

The Brit scored two top-20 finishes during the opening rounds, though his season would end after a lap one crash at the Indianapolis 500 involving himself, Marcus Ericsson, and Pietro Fittipaldi, which caused him to be replaced by Hélio Castroneves for the next two races.