Imperial units commonly used units for length are (li), (tseung/cheung), (tsek/chek), (tsun/chun), (fen/fan) in descending scale order. These units are now rarely used in daily life, the imperial and metric systems being preferred. The imperial equivalents are written with the same basic Chinese characters as the Chinese system. In order to distinguish between the units of the two systems, the units can be prefixed with "Ying" () for the Imperial system and "Wa" () for the Chinese system. In writing, derived characters are often used, with an additional (mouth) radical to the left of the original Chinese character, for writing imperial units.
Chrysler Imperial cc) straight-eight engine. Marketing materials for this generation of Imperial referred to the car as the "Imperial 8", in reference to the new in-line 8-cylinder engine. The engine would be found in many other Chrysler vehicles. The Imperial Custom had rust-proof fenders, automatic heater control, and safety glass. The limo even came with a Dictaphone. The redesign also saw the introduction of new wire wheels that became a standard wheel treatment until the 1940s. Stock car driver Harry Hartz set numerous speed records with an Imperial sedan at Daytona Beach, Florida. It was introduced shortly after the Rolls-Royce Phantom II,