I noticed that too. I think it's right hand drive (her car) but she's got both hands on her thighs and there's no steering wheel. Dex looks like he's taken his clothes half way off and is squirming around and waving his limbs like someone put a live carp in his briefs (he's the kind of guy who wears briefs). No steering while in sight on the left side either. And the sound effect is "vroom" or some such onomatopoeia.
And the snake? Still pondering that one. Maybe it was in the novel, the mangaka put it in the manga and went on a 2 month hiatus. When she finished, she'd completely forgotten about the snake.
It’s good to know why such a prominent plot factor was disregarded - lol. As far as how it got in the car, it’s not impossible that it climbed in to get out of the rain. Another commenter confirmed it’s a thing in Australia.
I wonder if the novel explains it or it’s a mangaka alteration. I’m guessing it does, but I’ve been surprised at how much rewrite liberty they have when they adapt a novel to manga. Sometimes it’s just a tweak, but sometimes it’s a complete revision! Just finished both Bride of Belfields and in the novel she is never accused of lying, never leaves, never gets searched for... well, she does, but it happens unseen in the beginning of the novel (he has detectives searching for her) and he actually knows who she is. In the novel, the transition from housekeeper to wife is seamless. In the manga there is a ‘she leaves; he searches’ in between.
Onpage 17 no one is driving the car and on page 102 why is she wearing sunglasse on a rainy day . And really where does that snake came from