Call:
arima(x = Cars_LG, order = c(1, 0, 1), seasonal = list(order = c(1, 1, 1), period = 24))

Coefficients:
         ar1      ma1    sar1     sma1
      0.9079  -0.6262  0.0358  -0.6545
s.e.  0.0108   0.0185  0.0307   0.0244

sigma^2 estimated as 261112905:  log likelihood = -34244.83,  aic = 68499.67