John Terry has marked his twins', Summer and Georgie, 17th birthday by gifting them matching £40k Mercedes cars.The former footballer turned professional coach, 42, certainly spared no expense regarding the lavish celebrations, purchasing multiple cakes and decorating the home with balloons and lights - and of course, the pricey cars. Sharing snaps of the cars and celebration to Instagram, John wrote: "Happy 17th Birthday @georgie26terry [blue heart emoji] @sum26terry "We hope you have an amazing day, Mum & I wish you all the happiness and success in the world.