Nissany holds dual Israeli and Hungarian nationality and built his professional life around real estate development before turning to motorsport at an unusually mature age. He is the father of Roy Nissany, who also became a racing driver.
Nissany began competitive racing in 2002 at the age of 38 — a late start by any measure. He entered the Formula 2000 Hungarian National Championship, finishing runner-up in his debut season. The following year he won the same championship, racing for Szasz Motorsport in a Coloni CN-98. He defended that title in 2004 and went on to win further editions in 2006 and 2007, with additional titles following later in his career.
From 2003 onwards, Nissany began entering more internationally visible events, competing in FIA Central European Zone rounds and the World Series Lights. He signed a contract with Coloni Motorsport for 2004 and contested the International Formula 3000 Championship. His performances at Coloni led to test opportunities with two Formula One teams: he completed two tests with Jordan Grand Prix and two with Minardi.
On 2 February 2005, Minardi team owner Paul Stoddart announced at an international press conference in Tel-Aviv that Nissany had been appointed the team's official test driver for the 2005 season, becoming the first Israeli to hold such a position with a Formula One team.
The arrangement gave Nissany a free practice session at the 2005 Hungarian Grand Prix — held at the Hungaroring on 29 July 2005, which happened to be his birthday. In first practice, Nissany posted a time 6.8 seconds slower than teammate Christijan Albers. His fastest time was 12.9 seconds off the pace set by McLaren test driver Alexander Wurz, the quickest driver in the session. The outing ended in a gravel trap following a spin. A further complication emerged when Nissany reportedly could not remove the steering wheel from its quick-release fitting, requiring the car to be recovered by marshals with the driver still seated inside. Despite these difficulties, Nissany initially suggested the car had offered too much grip.
He was the first Israeli driver to participate in any Formula One Grand Prix weekend. At subsequent events in the 2005 season, he was replaced by Enrico Toccacelo in the test role.
While pursuing his international commitments with Minardi in 2005, Nissany missed several rounds of the Formula 2000 Hungarian National Championship and lost that year's title by six points. He regained the championship in 2006 and defended it in 2007. His Hungarian titles, except the final one in 2009, were won with Laszlo Szasz's racing team.
Nissany is the principal investor behind the Balaton Park Circuit, a motorsports facility in Hungary that opened in 2023. The project represents a long-term commitment to motorsport infrastructure in Hungary, the country whose national karting and formula series provided the foundation for his own racing career.
Nissany occupies an unusual place in Formula One history as a driver who reached the sport's highest level through a combination of commercial sponsorship and genuine national representation rather than through conventional junior-formula progression. His single practice session remains his only Formula One appearance, but his status as the first Israeli to participate in a Grand Prix weekend gives him a permanent marker in the sport's record books. His son Roy subsequently went further, entering Formula One as a test and reserve driver, continuing the family's connection to the sport's top tier.