Sounds about right. By comparison, this year the roadster is HK$744 ($630 license, $114 TAVA).
Petrol ICE cars are HK$3,929 to HK$11,329 (depending on cylinder capacity).
EVs are currently priced at HK$440 (plus HK$30 TAVA) for first tonne, then HK$95 for each extra 250kg (plus 35% of annual TAVA rate).
Annual TAVA fee is currently HK$114 for EVs.