Bob Harper, Author at crankandpiston.com

Bob Harper

What is DRS? Drag Reduction Systems explained

May 14, 2020 Bob Harper

Editor’s Picks

The rotary engine: past, present and future

May 3, 2020 Bob Harper

Editor’s Picks

Ferrari F50 – review, history, prices and specs

Mar 8, 2020 Bob Harper

New 2020 Porsche 911 Turbo S revealed

Mar 3, 2020 Bob Harper

Mini John Cooper Works review – quick and engaging but suffering from middle-aged spread

Jul 28, 2019 Bob Harper

BMW 3-series review – Does it still reward the keen driver?

Jul 23, 2019 Bob Harper

New BMW 7-series 2019 review – can a revised V8 breathe life into the 750i xDrive?

May 23, 2019 Bob Harper

BMW celebrates 50 years of turbocharged competition engines

Apr 29, 2019 Bob Harper

McLaren teases all-new Grand Tourer ahead of reveal next month

Apr 3, 2019 Bob Harper

Bespoke McLaren 720S Spider by MSO uses unique paint to showcase aerodynamics

Mar 7, 2019 Bob Harper

Engine oil: how to choose the best for your car

Dec 12, 2018 Bob Harper

Ligier teases new track-orientated sports car

Aug 6, 2018 Bob Harper

New 2018 BMW M3 CS review – hottest ever M3 hits the road

May 21, 2018 Bob Harper

Car paint protection film – what is it and does it work?

Feb 19, 2018 Bob Harper

BMW M1: history, reviews and specs of an icon

Jan 29, 2018 Bob Harper

Gemballa GT Concept introduced at SEMA

Nov 1, 2017 Bob Harper

BMW 6-series GT review – a high-class 5-series or a cut price 7-series?

Oct 18, 2017 Bob Harper