takeover of Innocenti, the car was renamed the Innocenti Small and the Diesel, Matic, and Turbo de Tomaso versions were dropped. Updates included a slight facelift in November 1990, while the little 500's engine was updated to a 659 cc version following changes to the kei car regulations in March 1990 to allow for 660 cc of displacement—Daihatsu had quickly replaced the smaller EB engine with the somewhat bigger EF unit. Power remained exactly the same, while an increase in torque from at 4,000 rpm to at 3,400 rpm increased flexibility and meant that the top speed crept up to . Fuel economy also increased moderately. In July 1991 a luxurious "Serie Speciale" variant of the 990 was introduced, also offered with an available canvas-roof. The 990 Serie Speciale featured an alcantara interior by Missoni. In 1992, catalysed versions of both Innocenti Small versions entered the market. These versions had marginally lower power (see table) and top speeds. The last development was the "Small 500 SE" of 1993, which offered the smaller engine mounted in the longer "990"-style body. Production ended on March 31, 1993, with sales continuing into the next year. Daihatsu did stop using the three-cylinder CB engine in their own cars a few months before, but this may be coincidental. Turbo de Tomaso After the change to Daihatsu engines, a new De Tomaso version with a turbocharged, version of the 993 cc three-cylinder engine was presented in December 1983. Italian sales began the next month. This was the two-valve version; the considerably more powerful multivalve version used in the Charade GTti was never used in the Innocenti. The bodywork was also revised, with the headlights now sloping backwards and with new bumpers, skirts, and bumper extensions to fit the 160/65 SR315 (TRX) alloys. The sporty steering wheel received a leather rim. The original version was equipped with an Italian development of the naturally aspirated CB22 engine (called CB-DT, for "De Tomaso"), with an IHI RHB5 turbocharger and the same 9.1:1 compression ratio as for the CB22. Max power was reached at 6200 rpm for the original version. In road tests the Innocenti came in for complaints for its awkward upright driving position, mediocre comfort, and instability under braking. Plus points were steering, light weight, and appearance. The CB-DT engine was noted for its smoothness and lack of "brio". In the second half of 1984 the Italian CB-DT