See also:

Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. If the malfunction indic ...

Under the Hood
For 2006, the 4.7-liter V-8 produces 263 hp and 323 pounds-feet of torque. Those numbers are down slightly from the 2005 model's 270 hp and 330 pounds-feet of torque due to new SAE testing procedu ...

RX 450h in the Market
I've personally never understood car shoppers' desire to get a hybrid version of a luxury car or SUV, even if the mileage gains are significant, as they are in the RX; these buyers can afford more ...