The term POWERFUL CAR ENGINE can be summarized by two solutions: HEMI and VTEN. HEMI stands for 'hemispherical combustion chamber, ' which is a type of engine design that was first used in 1951 by Chrysler. It is known for its power and efficiency, and is still used in many modern cars. VTEN stands for 'variable timing electronic network, ' which is a type of engine technology developed by Honda in the late 1990s. It uses sensors to adjust the timing of the engine, allowing it to run more efficiently and with more power. Both HEMI and VTEN are powerful car engine solutions that have been used in many vehicles over the years.