clutch pedal, kickdown, rpms, torque, brakes, pedal, gearshift, detent, gear lever, shifter, gears, turbo, handbrake, brake pedal, accelerator, downshift, pushrods, rev, wheels, pushrod, camshaft, torque converter, exhaust valve, gearset, horsepower, coaster brake, redline, solenoid, afterburner, drawbar, supercharger, carburettor, steering, crank, sprocket, rollbar, dampers, cornering, oversteer, piston, gas pedal, airbrake, esses, accelerator pedal, tach, speed, gearstick, overdrive, valving, lever, derailleur, pto, engine, hydraulic pump, roadholding, rearwards, turbocharger, gearbox, crankshaft, steering wheel, piston rod, yaw, acceleration, stabilizer bar, countershaft, pawl, camber, cylinder, intake valve, drivetrain, knob, thumbwheel, torsion bar, turbocharged, tailstock, nitrous, fettling, antilock, limiter, straightaways, handwheel, aquaplane, actuator, sideslip, handlebar, accelerative, freewheel, apexes, autopilot, synchronous motor, downstroke, moldboard, fishtailing, servo, automatic transmission, wiper motor, vernier, crankcases, zippy, tacho, hydraulics, clunk, injector, drag, gear, axle, carburetor, clutch, contactor, shutter, switch, valve, feed, rudder, spool, switches, bracket, button, cleat, current, heater

baffle, clamp down, constrain, crack down, cramp, cumber, draw a line, draw the line, encumber, garotte, garrotte, gate, halter, hamper, harness, inhibit, mark off, mark out, reduce, regulate, rein, restrain, rule, scrag, stiffen, tie, tighten, tighten up

accelerator, accelerator pedal, butterfly valve, firewall, gas, gas pedal, gun, hand throttle, sure

aeroplane, airplane, auto, automobile, car, fuel system, machine, motorcar, plane

check, compact, compress, constrict, contain, contract, control, curb, enrich, foot lever, hold, hold in, moderate, pedal, press, squeeze, treadle, valve

accelerator, accelerator pedal, bound, choke, confine, gas, gas pedal, gun, limit, restrain, restrict, strangle, strangulate, throttle valve, trammel