( There ( ( are ( ( ( ( spark plugs ) ( in ( ( the engine ) ( that ( ignite ( the gasoline ) ) ) ) ) ) , ) ( causing ( ( an explosion ) ( that ( pushes ( ( the pistons ) ( that ( drive ( ( the ( crank shaft ) ) ( that ( turns ( ( the transmission ) ( that ( turns ( ( the wheels ) ( that ( move ( the car ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (JJ spark) (NNS plugs)) (PP (IN in) (NP (NP (DT the) (NN engine)) (SBAR (WHNP (WDT that)) (S (VP (VB ignite) (NP (DT the) (NN gasoline))))))) (, ,) (VP (VBG causing) (NP (NP (DT an) (NN explosion)) (SBAR (WHNP (WDT that)) (S (VP (VBZ pushes) (NP (NP (DT the) (NNS pistons)) (SBAR (WHNP (WDT that)) (S (VP (VBP drive) (NP (NP (DT the) (JJ crank) (NN shaft)) (SBAR (WHNP (WDT that)) (S (VP (VBZ turns) (NP (NP (DT the) (NN transmission)) (SBAR (WHNP (WDT that)) (S (VP (VBZ turns) (NP (NP (DT the) (NNS wheels)) (SBAR (WHNP (WDT that)) (S (VP (VBP move) (NP (DT the) (NN car))))))))))))))))))))))))) (. .)))
There are spark plugs in the engine that ignite the gasoline, causing an explosion that pushes  the pistons that drive the crank shaft that turns the transmission that turns the wheels that move the car.
(ROOT (S (NP (DT The) (NN turning) (NN driveshaft)) (VP (VBZ causes) (NP (NP (DT the) (NNS wheels)) (PP (IN of) (NP (DT the) (NN car) (S (VP (TO to) (VP (VB turn)))))))) (. .)))
The turning driveshaft causes the wheels of the car to turn.