Vehicles.ide:
taxiV,			taxiV,			car,		TAXI,		TAXI,		VEH@STD,				NULL,				40,		999,		0.2345, 0.2345,		0.3,3,	1.0	,1,	ext_taxi+ext_requi

txdp:
vehshareV, vehshare
vehshareV_hi, vehshareV

extra txdp for HQ interior:
taxiV, vehshareV_hi
extra txdp for LQ interior:
taxiV, vehshareV

carcols.dat (car3):
taxiv,		89,74,1,