@foreach ($photos_manquantes as $location => $vehicles)
    <h3>{!! $localisations[$location] !!}</h3>
    <ul>
    @forelse ($vehicles as $vehicle => $picture)
        <li>{{ $vehicle }} - Photos manquantes: {{ join(', ', $picture)}}</li>
    @empty
        <li>Aucun.</li>
    @endforelse
    </ul>
@endforeach