A lifthill coaster is more likely to me than one with a launch. The maximum elevation you can get out of a launch speed of 70km/h is about 19m. This could still work out if the launch track is elevated (11m!) and/or if there is a 30m tall spike that the train only partly climbs.
When it comes to specific coaster models it gets a bit difficult. The source explicitly mentions a height requirement of 100cm, not 95cm or 105cm, if we assume this to be correct that would leave the following models (obviously i might have missed one or two):
Gerstlauer Family Coaster
The website lists a max speed of about 60 km/h, the seating configuration would be a match though, so not impossible.
Gerstlauer Airtime Coaster
Seating configuration does not match.
Intamin Family LSM Coaster
Known seating configurations do not match.
S&S Railryder
Two persons per car, but the website lists a max speed of 58km/h.
Gravity Group
Some Gravity Group Woodies have a 1m height requirement like Oscars Wacky Taxi. They also have two person cars.
RMC Family I-Box / Wild Moose
Would be a leftfield option, but could very well be a fit, atleast i don't see any obvious contradictions with the known information
EDIT: Apparently it's going to be Vekoma. [
Source] As no current Vekoma models seem to match the description maybe a Thrill Glider?
