Abstract: A vehicle having a passenger compartment, an engine arranged at a front end thereof, and a fuel tank arranged under a rear seat and the passenger compartment comprising a canister and an exhaust pipe receiving exhaust gas from the engine and outputting the exhaust gas, wherein the canister and the exhaust pipe are positioned in respective recessed accommodating portions, one of the respective recessed accommodating portions is located between the fuel tank and the engine, and below the passenger compartment.

Abstract: A vehicle having a passenger compartment, an engine arranged at a front end thereof, and a fuel tank arranged under a rear seat and the passenger compartment comprising a canister and an exhaust pipe receiving exhaust gas from the engine and outputting the exhaust gas, wherein the canister and the exhaust pipe are positioned in respective recessed accommodating portions, one of the respective recessed accommodating portions is located between the fuel tank and the engine, and below the passenger compartment.

Abstract: In a digital filter, a plurality of delay elements D.sub.1 -D.sub.n are serially connected to one another, and taps for obtaining delay signals being different in delay time from one another are provided at respective connecting portions. Outputs from a plurality of multipliers M.sub.0 -M.sub.3 are added together by an adder A, and the result is outputted to an output terminal of the digital filter. Signal selecting means S.sub.00 -S.sub.3n are switched on or off between the plurality of taps and the input terminals of the plurality of multipliers. The multipliers M.sub.0 -M.sub.3 can be connected to optional taps, and, by use of a relatively small number of multipliers, a plurality of delay signals being different in delay time from one another are formed into a composite output signal while the delay times and the signal levels being widely selected.