The SYNUS is a concept car Ford Motor Company produced under the Ford brand. The SYNUS shares its powertrain design with the Ford Mondeo. The SYNUS' engine is a diesel powered, 16 valve, turbocharged, 2 liter Duratorq TDCi I-4 with a double overhead cam design that produces 134 horsepower (100 kW). The SYNUS has a five-speed manual transmission. Its wheels are 18 inches (457 mm) in diameter. It has an IEEE 802.11g compliant wireless LAN hub. The SYNUS débuted at the 2005 North American International Auto Show.
The SYNUS' unique features mimic the modern obsession with safety. The synus (pronunced sin-you-us) has a bullet resistant frame with bulletproof glass windows. Also, it has no rear window, but a large LCD monitor filling the back. Ford claims they built it inspired by bank vaults and that is reflected in its designed, the doors open with a vault-like wheel. Also, when in "lockdown mode" steel shutters close around the rear windows.