18th - 20th June
Book Here
-
-
Explore
-
Explore
-
-
-
-
-
Explore
-
-
-
-
Explore
-
-
Mazda2 Hybrid
£219 a month | 0% APR
Explore
-
-
View Offer
-
-
-
Explore
-
-
-
-
MG IM6 Long Range
£3,000 Deposit Contribution | 2.9% APR Representative
Explore
-
MG IM5 Standard Range
£2,000 Deposit Contribution | 2.9% APR Representative
Explore
-
MGS9 PHEV Comfort
0.9% APR Representative | £369 a month | £250 Finance deposit contribution
Explore
-
MGS6 EV SE Long Range
£1,000 Deposit Contribution | £1,500 MG EV Car Grant | 0% APR Representative
Explore
-
MGS5 EV SE
£3,000 Finance deposit contribution | 0% APR Representative | £1,500 MG EV Car Grant
Explore
-
New MG4 EV
0% APR Representative | £1,500 Finance deposit contribution | £1,500 MG EV Car Grant
Explore
-
-
-
-
All-New Mazda CX-5
£299 per month | £500 Pre-order Saving | £750 Deposit Contribution
Explore
-
Mazda 6e
£359 a month
Explore
- Welcome to Grainger Motor Group
-
Trending Models
-
Ti 7from £TBC
On the road
-
New X-Trailfrom £38,235
On the road
-
Super-Nfrom £TBC
On the road
-
7 SHS Hybridfrom £349
Per month
-
7 SHS Black Luxuryfrom £349
Per month
-
-
Approved Used Used Cars
Browse over 475 vehicles in stock.
-
Book Online Book Your Service
Book your Service & MOT online today.
-
Buy How You Want Buy Online
Browse, finance & buy your perfect used vehicle online.
-
Grainger Motor Group – New & Used Car Dealerships Across Hertfordshire & East Anglia
Grainger Motor Group is an award-winning automotive retailer operating 19 dealership locations across Hertfordshire and East Anglia.
Our business is built on a simple but powerful commitment: to deliver an exceptional customer experience through knowledgeable, highly trained teams who care about our customers for life.
Two Trusted Automotive Groups – Mantles Group & EMG Motor Group
Founded in 2022 by brothers Harry and Neal Grainger, Grainger Motor Group consists of two highly respected automotive businesses: Mantles Group and EMG Motor Group. Together, we represent leading vehicle franchises including Kia, Mazda, Honda, Nissan, MG and BYD
Dealerships across Grainger Motor Group can help and support you in finding your next new or approved used vehicle, discuss a range of flexible finance solutions and the option to either part-exchange or sell your vehicle.
We also offer a range of comprehensive aftersales services including manufacturer-approved servicing, MOTs, repairs and stockists of Genuine parts & accessories.
-
-
Mantles Group – Dealerships in Hertfordshire
Mantles Group represents Grainger Motor Group across Hertfordshire, centred around two well-known areas. Mantles Kia and BYD in Royston, plus 3 Norton Way dealerships in Letchworth Garden City that have recently been acquired in 2026, representing Nissan, Honda, and Mazda.
Mantles has been in business for over 100 years, building up a reputation for its professionalism, transparency, and customer-first approach – leading to customers who keep coming back.
-
-
-
EMG Motor Group – Dealerships Across the East Anglia
EMG Motor Group operates a large and established dealership network across the East Anglia.
With modern showrooms and expert local teams, EMG Motor Group has been providing customers with exceptional choice, knowledgeable advice, and a consistently high standard of service for over 50 years whether buying a new or used vehicle or maintaining an existing one.
-
Buy Online New Cars
Discover the full range of new vehicles available from EMG Motor Group today.
-
Approved Used Used Cars
With a wide variety of Approved Used Cars in stock, we’re sure to find your perfect car.
-
Motability Scheme Motability Cars
Find the perfect Mobility vehicle for you, brand new.
-
Book Online Service & MOT
Book your Service & MOT online today.
-
Get In Touch Contact Us
Contact Grainger Motor Group today, or view our contact and location details.
Grainger Motor Group Timeline
-
Aug 2022Grainger Motor Group is Formed
Brothers Harry & Neal Grainger come together to form Grainger Motor Group. Having started out in the automotive industry aged 16 & 18 working in a family run dealer group for over 40 years. Neal & Harry joined Norton Way Motors as trainees working throughout all areas of the business, eventually helping to run the business as Operations Director & Finance Director.
´22 -
Jan 2023Grainger Motor Group acquires Mantles Group
Grainger Motor Group acquires Mantles Group Ltd, a 100-year-old family business, with a Kia dealership on York Way in Royston, Hertfordshire. The Mantles family had run the business for three generations, John Mantle and the Grainger’s share key values, underpinning the culture of a family run business, recognising our staff are the biggest asset to the business. These values and the succession of the business to continue under family ownership was a key reason John Mantle agreed to sell Mantles to Harry & Neal.
´23 -
Dec 2023Acquisition of EMG Used Cars in Royston
Grainger Motor Group adds it’s second site with the acquisition of EMG Used Cars in Royston. Mantles Group Ltd grows to two sites acquiring the site located next door, growing the footprint of our Royston site to 2.6acres.
´23 -
Jan 2024Mantles Kia wins Kia Awards
Mantles Kia wins ‘European Kia Dealer of the year’ and finishes 2nd in the Kia dealer excellence awards for their performance in 2023
´24 -
Jan 2024Grainger Motor Group Acquires EMG Anglia
Grainger Motor Group completes the acquisition of EMG Anglia Ltd from Nick Storey, EMG Holdings. EMG Anglia is a well-established business with 14 dealerships across East Anglia, representing Kia in Cambridge, Ely, Thetford and King’s Lynn, MG Ipswich, Mazda Boston & Cambridge and specialist Used car dealerships in Huntingdon, Haverhill, Duxford and Spalding. As part of this deal, Rent Direct, which offers car and van hire across East Anglia, was also included. This acquisition takes Grainger Motor Group to over 300 staff across 16 locations throughout Hertfordshire & East Anglia - making GMG one of the fastest growing family automotive dealer groups in the UK!
´24 -
Oct 2024Mantles Kia New Showroom
Mantles Kia moves into its brand-new home next door on the Old North Road site. After significant investment the stunning new showroom opens with the latest Kia design, and benefits from a larger footprint and its own dedicated aftersales reception.in
´24 -
Nov 2024Mantles BYD Royston Opens
Grainger Motor Group opens its 1st BYD Dealership in former Mantles Kia Showroom in Royston.
´24 -
Nov 2024Mantles Kia Wins Motor Trader Awards
Mantles Kia wins Motor Trader Awards ‘Best Customer Care Dealership’ & ‘Most Improved Dealership of the year’.
´24 -
Jan 2025BYD Kings Lynn & BYD Spalding
GMG opens BYD King's Lynn in the former EMG Nissan site & in the same month BYD Spalding opens in a former EMG Used car dealership, growing the relationship with BYD to three locations.
´25 -
Jan 2025Grainger Motor Group wins 6 out of 7 Awards
Grainger Motor Group wins 6 out of 7 awards at the Kia Dealer Excellence Conference for their performance in 2024. This is something the Grainger’s are very proud of, considering the Kia dealer network is very strong and there over 180 dealers.
EV Dealer of the year
Sales Excellence Award
Customer Experience AwardDealer Excellence - Dealer of the year – Grainger Motor Group wins first, second and third place. With Mantles Kia achieving first place, EMG Cambridge achieving second place closely followed by EMG Thetford in third place.
´25 -
Feb 2025Kia South Cambridge Opens
Grainger Motor Group opens 6th Kia dealership, Kia South Cambridge in Stapleford, Cambridgeshire.
´25 -
May 2025AM Awards 2025
Grainger Motor Group takes home 5 awards at the AM AWARDS 2025
Dealer Group of the Year - Grainger Motor Group
Used Car Performance of the Year - Grainger Motor Group
Franchised Dealership of the Year - Mantles Kia
EV Performance of the Year - Mantles Kia
Special Award: Retailer of the Year - Grainger Motor Group
´25 -
Jun 2025Great Place To Work UK
Grainger Motor Group recognised as one of the UK’s Best Workplaces.
We are delighted that The 2025 UK’s Best Workplaces in Retail, Hospitality & Leisure™ list launched by Great Place To Work UK, has recognised Grainger Motor Group.
´25 -
Sep 2025EMG BYD Bury St Edmunds Opens
Grainger Motor Group opens BYD Bury St Edmunds in Suffolk. The site, formerly operating as a used-car dealership under EMG, is fully refurbished and rebranded, marking Grainger’s fourth BYD location and strengthening its partnership with the fast-growing EV manufacturer.
´25 -
Nov 2025Kia PBV Centres Unveiled
EMG King’s Lynn and EMG Cambridge unveil newly developed Kia PBV centres. The upgraded sites introduce Kia’s newest range of electric vans to the region, offering dedicated facilities, specialist staff, and expanded services for business and fleet customers.
´25 -
Nov 2025Grainger Motor Group enters AM100
Grainger Motor Group enters AM100 listing achieving 76th place on the AM100, one of the fastest growing family businesses to achieve AM100 status.
´25 -
Nov 2025Motor Trader Industry Awards 2025
Grainger Motor Group wins four awards at the Motor Trader Industry Awards 2025!
"Aftersales Excellence Award” — Grainger Motor Group
“Franchised Dealership of the Year” — Mantles Kia
“Most Improved Dealership of the Year” — EMG Kia & Mazda Cambridge
“Used Car Dealer Group of the Year” — Grainger Motor Group´25 -
Jan 2026GMG acquires Norton Way Nissan, Honda and Mazda
Grainger Motor Group acquiries 3 Norton Way dealerships in Letchworth - Nissan, Mazda and Honda. This transition marks a significant milestone in the GMG journey, which has grown the group to 19 total locations.
´26 -
Jan 2026Grainger Motor Group triumph at Kia UK National Dealer Conference
Grainger Motor Group secured 5 out of the 8 top awards presented at the conference. Including:
- Dealer of the Year – 1st Place: EMG Cambridge
- Dealer of the Year – 2nd Place (Joint): EMG Ely
- Dealer of the Year – 2nd Place (Joint): Mantles Kia
- Aftersales Excellence Award: EMG Ely
- EV Excellence Award: EMG Cambridge
´26 -
Jan 2026Grainger Motor Group celebrate double win at BYD UK Retailer Awards
Grainger Motor Group won two prestigious awards at the first-ever BYD UK Retailer Awards, held at the Telford International Centre in Shropshire.
- Retailer Group of the Year
- Aftersales Retailer of the Year - EMG BYD Kings Lynn
´26
Change Your Postcode
-
BYD Bury St. Edmunds
Bury St Edmunds, Suffolk, IP32 6AL
-
BYD King's Lynn
King's Lynn, Norfolk, PE30 4NB
-
BYD Spalding
Spalding, Lincolnshire, PE11 3DQ
-
GMG Jaecoo Letchworth
Letchworth Garden City, Hertfordshire, SG6 1BL
-
GMG OMODA Letchworth
Letchworth Garden City, Hertfordshire, SG6 1BL
-
Mantles BYD Royston
Royston, Herts, SG8 5HJ
-
Mantles Kia Royston
Royston, Herts, SG8 5DQ
-
Norton Way Honda
Letchworth Garden City, Hertfordshire, SG6 1BL
-
Norton Way Mazda
Letchworth Garden City, Hertfordshire, SG6 1BL
-
Norton Way Nissan
Letchworth Garden City, Hertfordshire, SG6 1BL
Please Wait
This won't take a moment...
