Table 4 Product specifications and values

S₁

Price (×1000 CNY)

[0,10];

(10,20];

(20,30];

(30,40];

(40,+∞);

S₂

Electric mileage

(km)

[0,200]; (200,300]; (300,400]; (400,500]; (500,+∞);

S₃

Engine type (horsepower)

[0,90];

(90,120];

(120,150];

(150,180];

(180,210];

(210,+∞);

S₄

Weight (kg)

[0,1000];

(1000,1300];

(1300,1600];

(1600,1900];

(1900,2100];

(2100,+∞);

S₅

Motor power (kW)

[0,50];

(50,100];

(100,150];

(150,200];

(200,+∞);

S₆

Top speed(km/h)

[0,100];

(100,120];

(120,140];

(140,160];

(160,+∞);

S₇

Total motor torque (N·m)

[0,100];

(100,200];

(200,300];

(300,400];

(400,500];

(500,+∞);

S₈

Electricity of 100 km (kW·h)

[0,11];

(11,13];

(13,15];

(15,17];

(17,19];

(19,+∞);

S₉

Energy density(W·h/kg)

[0,135];

(135,145];

(145,155];

(155,165];

(165,+∞);

S₁₀

Quick charge time (h)

[0,0.5];

(0.5,1];

(1,1.5];

(1.5,+∞);

No;

S₁₁

Battery capacity (kW·h)

[0,25];

(25,40];

(40,55];

(55,70];

(70,+∞);

S₁₂

Size of central console screen (inch)

[0,5];

(5,7];

(7,9];

(9,11);

(11,+∞);

S₁₃

Cell model

Cylindrical;

Square;

S₁₄

GPS

Yes;

No;

S₁₅

Power sunroof

Yes;

No;