Simplify the following text for a Grade 7 native English-speaking person.
Original: The British Class 390 `` Pendolino '' electric multiple unit is a tilting train built by Fiat Ferroviaria utilising Fiat tilt systems .
Simplified: The Class 390 Pendolino is a type of train used in Great Britain . They are electric multiple units using Fiat 's tilting train pendolino technology and built by Alstom .