Plans to bring the Autodromo Hermanos Rodriguez up to standard for its return to the 2015 Formula 1 calendar remain well on track, according to officials.

The venue, which first hosted an F1 race in its original guise more than 50 years ago, will play host to the revived Mexican Grand Prix on 1st November, marking the first time it has been used for an FIA world championship event since 1992.

Located in the heart of the capital Mexico City, the Autodromo Hermanos Rodriguez held Mexico's F1 race between 1963 and 1970, then again between 1986 and 1992, and will return in 2015 without a layout that remains faithful to the original.

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The biggest alterations have been centred on the iconic Peraltalda bend, formerly a long, banked right-hander that led onto the home straight. Safety considerations have prompted the updated circuit to amend it into a sharper right-left-right complex that leads back onto the corner half-way around.

Despite the slower entry, speeds are still expected to reach around 330km/h down the 1.2km home straight, making it the second fastest straight on the calendar.

Elsewhere, the Lago section at the circuit's top-end has been tightened to promote more overtaking, but opening bends and the sweeping corner sequences that stretch between turns eight and 13 hark back to its heyday.

As a result, updates have focused on mostly bringing the circuit up to a safe standard, with increased run-off areas, higher quality tarmac and improved drainage being installed to ensure it receives the necessary FIA Grade 1 certification. In addition, new spectator-optimised stands, facilities and a new pit complex is being installed.

Nigel Mansell was the last driver to win the Mexican Grand Prix, driving for Williams-Renault in 1992, ahead of Riccardo Patrese and Michael Schumacher, the latter scoring the first of his 155 F1 career podiums