Peters said Labour leader Jacinda Ardern, National, the Greens, Auckland Council, Auckland Chamber of Commerce, NZ Transport Agency and others have all jumped on the bandwagon for light rail, or modernised trams.
"In Auckland, light rail would not provide enough capacity in either the medium or long term, and would be 30 per cent or worse slower than heavy rail," Peters said.
Labour and the Greens are promising to build light rail to the airport from Wynyard Quarter, up Queen St and down Dominion Rd - an option supported by Auckland Transport and NZTA.
National says the new Waterview Tunnel has reduced driving times to the airport and has plans for rapid buses to the airport, possibly followed by light rail by 2047.
How the parties will transport you to the airport
National: Road and rapid buses. Possibly light rail by 2047
Labour: Light rail(modern trams) by 2027
Greens: Light rail(modern trams) by 2021
NZ First: Conventional rail