Thunderbird Niche ‘Citrine’ Custom Wheels. Take your 2002-2005 Thunderbird to a new level of sophistication with our stunning Niche ‘Citrine’ custom wheels. Monoblock construction ensures proper balance and a smooth ride even at higher speeds. Available in your choice of White or Silver machine finish, these 18″ diameter wheels are larger than the Thunderbird OEM stock wheels. Please specify either ‘White’ or ‘Silver’ finish when ordering. Please note: These wheels will require 18″ tires. Complete wheel and tire packages are available with this product. Please call or e-mail us for details. Price is for set of four wheels.