OK i fixed that ! It’s all about the .meta order.
it looks like this now and everything working !
files {
'data/**/vehicles.meta',
'data/**/carvariations.meta',
'data/**/carcols.meta',
'data/**/handling.meta',
'data/**/dlctext.meta',
'data/**/vehiclelayouts.meta',
'data/**/shop_vehicle.meta',
'data/**/carcontentunlocks.meta',
}
data_file 'HANDLING_FILE' 'data/**/handling.meta'
data_file 'VEHICLE_METADATA_FILE' 'data/**/vehicles.meta'
data_file 'CARCOLS_FILE' 'data/**/carcols.meta'
data_file 'VEHICLE_VARIATION_FILE' 'data/**/carvariations.meta'
data_file 'DLCTEXT_FILE' 'data/**/dlctext.meta'
data_file 'VEHICLE_LAYOUTS_FILE' 'data/**/vehiclelayouts.meta'
data_file 'VEHICLE_SHOP_FILE' 'data/**/shop_vehicle.meta'
data_file 'CARCONTENTUNLOCKS_FILE' 'data/**/carcontentunlocks.meta'
client_scripts 'vehicle_names.lua'