Words and Cars

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Across
  1. 2. one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle or the crank of a bicycle) and the speed of the driven parts (the wheels).
  2. 4. a viscous liquid derived from petroleum, especially for use as a fuel or lubricant.
  3. 7. an automobile built or modified for racing.
  4. 8. a circular object that revolves on an axle and is fixed below a vehicle or other object to enable it to move easily over the ground.
Down
  1. 1. a machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts.
  2. 3. A person who designs, builds, or maintains engines, machines, or structures.
  3. 5. a design prepared on special paper for transfer onto another surface such as glass, porcelain, or metal.
  4. 6. a person who drives a vehicle.